go to the serve you wanna go to
they both have traditions
IE: ever heard of the 101st and 82nd airborne ?? duh huh
2. ignore the first to fight - obiviously that answer has never served in the military or they would know thats simply not true
3. your gonna have to learn to swim -- in either service - and go through drown proofing
4. you can pretty much forget changing service branch nowadays, it just rarely happens anymore
and note : you can stay infantry forever - just where did the other poster thank infantry 1st Sgt's and Sgt Majors come from ?
5. so the choice is yours - there is no wrong choice
most choose based on family history, or maybe a neighbor served in one or the other, heck, maybe just because you saw a john wayne movie about one of the other service -- even which uniform you like best
it really doesn't matter - only you know which service you wanna enlist into.