I love American Football. It's so much better than soccer with all the fake dives and people pretending to be hurt, I love the tactics and game planning.
I like soccer too - my US husband was a national league player and has played against UK premiership squads - but we love watching American Football (especially college football) much much more.
Some of the offensive and defensive linemen are incredible...they play with broken arms, ribs, faces, heck, one of our quarterbacks even played with a partially fixed broken leg, you wouldn't see soccer players doing that, and the game is very physically draining (unless you are a punter of course
Rugby is even better of course in terms of brute strength and endurance.
I prefere watching live soccer in the USA aswell - far fewer hooligans and idiots ruining the game for everyone.