I've always been a big fan of Captain America, not just because he's a mortal among gods but because of what he stands for--an exemplar of a bygone era of truth and justice (that may never have existed, a la Utopia) who finds himself in a world that needs him more than ever and is even less willing to admit it. One of my favorite quotes from a comic was from an old Avengers (several universe reboots ago) where Hercules said "On Olympus we measure speed by Mercury, power by Zeus, and strength by Hercules...but we measure courage by Captain America."
Consider that the guy has, armed with a frisbee and super-soldier serum that boosts him to the limits of humanity, stood alongside (and against) gods in combat and prevailed, excelled, bought victory through determination and tactical brilliance. In the end, he was brought low the only way he could be--not in battle, but by a sniper's bullet. Only taken unaware could the ultimate warrior be brought low.