ST:ENT - the only Trek uniforms that look like realistic clothing you'd actually want to wear everyday while you're working.
Star Trek season 1 and 2 tunics; I loved the look and sparkle of those uniforms. To me, it gave it a futuristic look. I wished JJ's team created uniforms with the velour fabric.
Oh, and I I love the Abram uniforms because of the bright colors, the added textures on the outer color shirt, and the layering of the black undershirt with the color shirt on top. I could probably say more about it, but those are the basic reasons why I love those uniforms so much.
I went with the late DS9 / First Contact ones, but the red TOS movie era ones are a close second. I also quite liked the (not listed) Relativity uniforms.
The FC/Nemesis and later DS9 seasons uniforms, including the Dress Uniforms, are the most fashionable.
The ENT Uniforms looked like good quality functional Uniforms. Things like Pockets. The TNG Deep Space Pajama's... bleah.
The First Contact/late DS9 uniforms. They're the only uniforms I would like to actually wear. The pockets on the ENT uniforms are overrated, IMO (they're so narrow that you can only put a skinny communicator or a notecard in them).
Tough one. I really like the II-VI uniforms, but in the end I have to give it to TOS. Very iconic and it made choosing canon fodder away teams much easier. I especially liked the dress uniforms of TOS.
Either the TOS ones (although I hate those 3/4 pants) or the Star Trek Beyond ones (although I'm not sold on those TNG-style collars or shoulder pads) Me likes bright colours on my space adventurers.
2-6 (I've always called them TWOK uniforms for the first film they were in) and First Contact as they were the only uniforms that I think would ever be practical for everyday wear.
Tough choice. I love the bright colours of the TOS uniforms, the Maroon uniforms from the TOS movies and the uniforms used in most of the TNG movies/Season 5-7 of DS9. TOS uniforms are so iconic and a treat for the eyes. Hello, Lt. Uhura!
The Wrath of Khan thru Undiscovered Country uniforms. I also liked the First Contact/DS9 uniforms as well.
Agree, WOK-TUC. Since they did not adapt TMP Admiral Kirk's [arrival at Starfleet Headquarters] uniform to the entire crew of the 1701-Refit.