#16 in a 27-issue limited series
People are still desperately trying to match Kirby's power, and the way he would have Captain America beat the fucking shit out of some nazi scum. And after decades of attempts, nobody has come close.
The Madbomb-era stuff is brilliant comics, fizzing with energy and ideas, and supremely out of place with the more sedate pace of the rest of 70s Marvel. And the Bicentenial Battle is even better, and not just because it's a done-in-one adventure that tells you all you need to know about Steve Rogers.
It's because when you get the Kirby art this big, it can feel like you're falling into the pages. When Cap yells, his open mouth is a chasm, and when his fist comes pumping out towards you, you have to duck. Kirby Captain America is the best Cap, but super-sized Kirby Cap is the best of all.