Most of my scribbles here are not about what i think looks best, but what i think works best in design, and is a practice where you have to admit something is good, even if you don't like it. But for this i'll just focus on the pure aesthetic and select a single design (not a home/away set, just 1 uniform) from each team's entire history as my favorite. So, I'll ignore that the Panthers look too much like the Lions and other branding issues. But, I will consider each team's logos as part of the uniform.
Dolphins - Miami's logo wasn't quite as good then, but the lack of navy and large drop-shadowed numbers makes this a stronger design. Also, stripped socks are always a win.
Jets - I'm not the biggest fan of green, so using it as a secondary color in a design looks better to me than using it as a primary. I dont think they've ever had a really strong logo or a great execution of jersey stripes but this is the lesser of evils in their history.
Bills - The stripes look cheap on the jersey and Nike ruined their collar with their FOLO (fake polo) design, but the 2011 Bills never looked better. I really liked their previous red helmet and the standing buffalo helmet era, but this one is a clear winner for me. Glad to see them wearing blue pants on the road now too.
Patriots - The single most retarded, dumb-ass design decision in sports history was putting a American football team named the Patriots in a red jersey and white pants. I mean, come the fuck on. This is supposed to be all about the pure visual, but i can't get passed that. So, by default I arrive at this era, but i actually really like this uniform. Their number font and logo are especially great.
Steelers - Little change through their history but I'm one of the few that likes their current number font. The black jersey is great too, but I like the white because it makes the player look lighter and more athletic. (light colored objects appear larger, but lighter in weight). And, you get that cool ABC 3 piece look where helmet/jersey/pants are all different colors
Bengals - I actually really like this design. The stripes, the number font, It's all good by me.
Browns - I dig the white on white, but the brown pants are unique and add a nice alternate, modern look to a classic design.
Ravens - The Ravens can't win. They have a terrible dark color palette that would benefit from using more gold/yellow. Bad numbers, bad logo, bad stripes. But, the purple and black combo is ok.
Colts - The difference between the Colts unis now and from the Unitas days is the stripes that go all the way around the shoulder (though, the truncated stripes do work better on modern cuts) and the striped socks. When they changed their color to a darker blue in 2004 and added the grey mask, they also had striped socks, which was meant to look like this uniform, but the full stripes look so damn cool. PS - i hate the blue face mask era
Jaguars - Like the Ravens, they have never had a uniform I liked. This one is a great color combo though.
Titans - Another team that dosent have a uniform I really like, except the jerseys. Some silver would do so much for this identity
Texans - Solid design and i love the red number on this jersey. One of my favorite number fonts and maybe the best logo in the NFL
Chiefs - I've always felt this was a boring design, but at least its a solid one with no glaring flaws. The white on white combo is pretty awesome though.
Raiders - One of my favorite uniforms in the league. The silver trim on the numbers is a small detail with a large impact. Something the black jersey lacks.
Chargers - The pants stripe is awful, but this is my favorite color palette in league history. Why they dont wear powder blue today full time, i have no idea.
Broncos - This was a hard one to pick. I like the colors from the Elway era best, the jerseys from '66, and the current logo. Which is what is came down to really, the other logos are terrible. I also like the all blue monochrome look today, but i cant get enough of white on white. Both of those looks have the stripes fit together the best too.
Cowboys - When I was a kid this was the coolest jersey in the universe. For the most part, I still feel the same way. I'd love for the 'Boys to go to these full time. The throwback versions never really got the stars right
Eagles - Beautiful colors here. It's one of the few greens i like in sports. silver pants with this jersey would be ace.
Giants - They might be doing a throwback version of this soon. I love the current uniform, but this jersey is stunning. I'd love to have a sweatshirt with this design.
Redskins - This was a hard one to pick too, lots of great looks for the Skins. I decided this one over the current unis because of the sleeve stripes.
Bears - I've always liked the white logo and grey mask on this helmet. White on white again, it works with any secondary color especially blue (and orange as a tertiary) like the Broncos.
Vikings - They have a white on white option, but the purple jersey too unique not to like and the stripes look great on it. The white jerseys had shoulder loops which i just dont feel for them. I like the current uniforms too, but these are classic.
Packers - One of my top 3 favorite current NFL uniforms. I chose the modern version over the Bart Starr era unis because those sock stripes were a mess. Strangely I prefer the modern solid color to that design.
Lions - The current set is nice, adding black a few years ago was a great move that helped give life to a boring design. But these throwbacks are so simple it goes beyond boring and comes out the other side as awesome. The 1 piece solid colored socks are the best part.
Falcons - Another one of my top 3 current uniforms. Great numbers, logo, and colors. Very hard to chose one set here, any pants/jersey combo is a winner. The throwback uniforms are also a beautiful design but I can't stand that old logo.
Panthers - I dont like this uniform design, their logo has been hacked to shit, and the whole identity is too close to the Lions for my liking. But this jersey is likable; a very cool color.
Buccaneers - I love their colors and the blood red jersey screams "bad ass band of pirates!". The flag on a sword logo leading the player into battle is one of my favorite helmet/logo designs ever.
Saints - I hate their current uniform but this uniform with the bold stripes and yellowish gold pants is one of the single best uniforms i've ever seen. If they wore this full time i would seriously consider becoming a Saints fan. I mean look at Lance Moore there, he's dancing because he's so happy to be wearing this uniform!
Rams - This is the only jersey/pants combo I like of their current design but it's a damn good one. This is a sweet modern look with some of my favorite number font, secondary logo, and helmet design.
Seahawks - Love their colors now, but they never have had a uniform design I like, and the current ones are probably the worst in NFL history. But again, white on white.
Cardinals - I really like this design with the modern logo update. I hate that they're hanging on to the grey mask though, everything about this team is modern and the mask is out of place.
49ers - I almost went with the 80s version because the jersey stripes arn't hacked and the socks are striped too but what i love about the current look is the pants color and helmet logo.
Looking at everything together it's apparent I like white; sue me. Lots of white jerseys showed up here and white on white combos. Striped socks are also a personal favorite, I just can't stand the modern 2 tone solid color socks. I really like an ABAB combo with the helmet matching the pants, and jersey matching the socks. Or, an ABCB combo where the helmet, jersey, and pants are 3 different colors but the socks match the jersey. Small details include grey face mask and black cleats.