Infantry isn't just about shooting bad guys.. Keep in mind, you better be ready to bust your hump and work hard.. The Infantry is nicknamed "Grunts" because we do all the work noone else wants to do.. and usually for no explained reason....
I have a friend who went "Combat Medic" or what is known as 68W Health Care Specialist... You may not be as excited about this MOS after getting in.. Unless you have plans to work your way into a High speed unit (Infantry, Rangers, SF, or such).. Then you could really get some good Civilian training from this..
Benefits are all the same from Branch to Branch.. It's the school and enlistment benefits.. Its not about these two.. If you wanna go to school, via the Military be a cook or something stupid that you wont deploy and you can do your school on your time.. Enlistment bonuses come from Critical MOS's deemed in need by the US Military.. Theres alot more to consider then benefits, its all about you.. It's like buying a car that will actually help you get a job and a career later in life.. The more thought and choice you put into it now, the more you will reap later...
Good luck and I wish you well.
PS Everyone has opinions of each branch and MOS's, and typing to people on a website about it isn't the best way to make a decision... I would reach out to actual Military people who are currently doing the specific MOS and talk to them face to face.. May be hard. but look into it.. They will tell you the NO SH*T assessment of what that MOS is...