so the airforce has started turning overpaid boy scouts into real ground pounders?
definitely something new...the only "infantry combat trained" airforce ground troops i had any contact with were a company strength detachment attached to 82nd ab units training in aberdeen md (no, i have no idea what they were doing there)...and they couldn't hold off a fireteam of bootcamp fresh jarheads.
you don't need to try and oversell the role the pj's or cct's, or whatever the af has going now...and it's not like they are really "doing the army's job"...augmentation is just that, fill in...especially areas where seasoned combat troops shouldn't be utilized...not that it isn't just as dangerous where they are, it's just that commanders don't like putting front line troops in rear guard duties.
You....Mostly you're full of it (ie. completely wrong). My base has deployed a few hundred USAF members for ground duty in Army units. Some of them find themselves drivers or gunners in Army convoys, some find themselves walking the streets as they augment Army infantry units. Not one of these augmentees are involved in air operations, rather they are bailing out the Army, doing the Army's job for them, because the Army can't get the job done without USAF troops filling in the roster.
My current job is as an air advisor to the Iraqi Air Force, but before I deployed I had to go through a rather intense combat skills course taught by ex-SEALs, ex-Rangers, 100% special forces or experienced SWAT officers. That's ground combat training, in case you're not following along.
And guess what - because of my job, if I ever end up on the ground, it'll be me, my 9mm, and a radio, by myself, pretty much in the situation that every Army troop is trained from day one to avoid because isolated troops end up dead. But that's MY combat environment, me and my M-9 and a radio against all comers until rescue shows up. That's why our SERE training takes so long (minimum 6 weeks plus advanced courses for high risk of capture and conduct after capture training), because when we find ourselves in ground combat, we're pretty much alone hoping to stay alive long enough for some snake eaters to bail us out.
And still, my wing has deployed only about 6 guys per year to flying jobs. The other several dozen per year are doing ground duty, many of them filling Army jobs in Army units, eating Army chow, shooting Army bullets, doing the Army's job. You don't see many Army troops filling in to fly nuclear capable strike aircraft... We got that covered, and we'll keep doing the Army's job as long as the SECDEF keeps signing the title 10 waivers (google it if you don't know what that means).
.... and you. your argument is now invalid. 
Mason,
Its whatever u prefer, each branch has there downs and ups. This is for something ur going to have to reaserch on your own, Talking to servicemen can be a pain, Each branch is going to say completely diffrent things, and rag on the other branch. The 3 branches you r looking at , Army, Air Force, Marine Corps. All are simular and diffrent in ways. just to kinda sum it up.
Air Force- TOUGH to become a pilot, thats why faar majority of the AF is on the ground, doing mostly administive task and of couse all the ground jobs that need done for the air force mission, select jobs are "highspeed" and go out on missions and do Army like tasks. Yes, as stated before they do augment airmen to work with Army units. In general you probably wouldnt do too much in the Air Force unless u got a select job.
Marine Corps- Big in Tradition, but lack in technology. But make up for it in there skill. Downside is good chance somewhere down the road u'r likey to get screwed over in someway, (has happend to 4 of my friends, and they've only been in about a year

)
Army- LARGE branch, pride is taken more unit based vs branch wide like the marine corps. In general, the latest and greatest technology (haha not in my unit *cough). Wide selection of jobs and also plenty of advanced skills that you can learn not offerd in the marine corps such as Airborne, Ranger, SF, Pathfinder, Air Assault and Arctic School. and you get guarenteed job selection (which is a BIG DEAL).