They're both fun as hell, really. My friends and I always play tennis at this park nearby. It's definitely not even close to being a cakewalk. We absolutely suck, but it's still fun. Soccer's really underrated in America too; I played in a league for a couple of years. I'm not sure what made me give it up. However, I still do watch soccer occasionally and I'm still into it. I love the Beasley's, being that they're both alums of my elementary, middle, and high schools. I also will catch a few soccer games at IU; that'll be kind of cool. They get decent crowds for that, IU actually just won the Division I soccer championship last winter.
It is kind of weird how America is with sports though. The whole world loves soccer, yet America really doesn't accept it. However, a mass of people (I, not included) enjoy watching Nascar, where people turn left for 4 hours.
Whatever.