It depends on what you want to do. If you want a higher quality of life then The Air Force is the obvious answer. Great training which will prepare you for a civillian job on the outside, No BS detail- stay in hotels rather then tents- air conditioning and top notch equipment and facilities. But if you want excitement or to kick some a$$ The Air Force may not satisfy your need. You can always go special forces (para rescue/combat control) but that can be said for any of the branches. It comes down to what you want.
If you wanna travel and see the world I'd go Navy. (The Navy also has good training- its just that the living conditions are not as good)
Your right and wrong...
The Air Force does have a better quality of life... when deployed we don't USUALLY stay in tents... we usually have hard billets like Dorms. and yes A/C is a big deal in the Air Force. Top Notch equipment? uh... well maybe for the military but we're defiantly not cutting edge technology.
Also because of what's above you have A LOT of whiney bitches who joined for reasons unknown and bitch and gripe about every "militaryish" thing we do! so remember that when your considering the AF... as it's both amazingly annoying to hear on a daily basis "**** this I can't wait to be a civilian" from someone who's 20 and wouldn't last 2 mins in the civilan world with out getting fired.
From my experience (6 years in Feb) most people joined the AF for school or to get out of their life before. and the majority of them will bitch and whine about not getting freedoms that they gave up when they signed the dotted line.
as I said... I've been in the AF for 6 years... I'll have 10 in when it's time to re-enlist. honestly... I love it. I do wish it was a bit more military at times, the disrespect shown my todays airmen to NCO's and leadership kills me... but all in all I fit the AF very well... I love the change, the challenge, and meeting new people.
Between the two I'd go AF again any day of the week... I'm not big on boats, and so ship duty wouldn't agree with me much...
When you do choose the AF...
RESEARCH YOUR JOB! make sure you get one you want... a bad one can sour your taste of the AF and the military. a good one can turn you in to the next General.
but above all... KEEP A POSITIVE outlook no matter what branch you choose... Negativity spreads like cancer and it's extremely easy to catch but in the end it's just going to hurt yourself... just remember why your joining, and keep your goals in mind. and ENJOY the opportunities afforded to you by the sacrifices your make'n.