What branch of the military should i join?

i'm going to join the military, but i don't know which branch. i want to see alot of action and i'm really good with any gun you hand me(pistols, rifles, machine guns, and long distance rifles) and i like flying, so my top two choices are the airborne rangers or being a sharpshooter, but the thing is which has the better sniper program, army or marines? can i be both, like an airborne ranger sniper? or what? give details