Random Best Marvel Costume Adaptations (19 items)

(#9) Star-Lord — Guardians Of The Galaxy

One of those rare "took the idea of the character and threw a lot away" situations that actually worked out. Star-Lord has had so many looks over the years, none ever being consistent. So they took the energy of the character, the feel of the universe they were creating, added the important elements and made an icon.
(#18) Doctor Octopus — Spider-Man 2

A hard character to even look believable in the comics somehow translated even better to the real world. The trademark tentacles and scientist garb, the tentacle placement, the glasses — Octavius came to life.
(#8) Ant-Man — Ant-Man
Marvel Studios always finds a way to stay true to the original costumes from the comic books, while updating each costume to be more tactical and believable in today's world. Ant-Man's costume is no different.
(#10) Hulk — The Avengers
This one goes out to the CG wardrobe artists who finally found the right (and first) shade and style of purple shorts to not look ridiculous, and still strongly nod to the books. All of Banner's purple wardrobe was fantastic and sneaky as well.
(#5) Thor — Thor: Dark World
A literal god with a red cape, metal sleeves, large, chest orbs, and a quasi-viking helmet looking great on screen was simply incredible.
(#12) Nick Fury — The Avengers

It helps when the new comic counterpart is based on a real person and look.
So when the costume designers outfitted Samuel L Jackson in this Nick Fury garb, it was like he was stepping right out of the pages of The Ultimates.