In an interview with Flicks and Bits, Evans said he truly respects Rogers's drive to live up to heroic ideals.
"I love the character, Steve Rogers, he's everything I wish I could be as a man, you know?" Evans said. "He's good for the sake of good, and that's a fun character to try to portray."
Steve Rogers sees his whole world turned upside down in The Avengers, when he is brought from the 1940s into the modern world.
Evans went on to reveal that one of The Avengers' key themes is how Rogers deals with culture once he arrives in the present day.
"The world around him is a different place. He's from a different era and I think that era really defines who is," the star explained. "I think the modern day is a bit more flash and stylish, it's a bit more selfish, a bit more impersonal. There's a lot of technologies that put blocks between people."
He continued: "In the '40s there's maybe a bit more of a direct, honest, sincerity to the way people behaved. I think human interaction breeds manners, you know? [This is] a world Steve Rogers isn't quite accustomed to, it's a different world that he has to get used to.
"I think with The Avengers, even more than in Captain America: The First Avenger, Steve Rogers has some issues, some conflicts and some trouble with the fact that he is a man out of time. But he puts that second and the mission first. He's selfless."
Evans's Avengers co-star Mark Ruffalo previously said that he would love to star as The Incredible Hulk in a solo film.
The Avengers is released in UK cinemas on April 26 and in the US on May 4.
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Watch a trailer for The Avengers below: