If you had to join a different branch of the military which one would you choose?

I served in both Air Force and Army. Almost in the Navy also.

All ready did Air Force and Army - my father was Navy then Air Force. I'd have to go Navy to close the circle.

Well, I was in the Air Force and Army Reserve, so, I guess Navy.

Originally, I wanted to fly Air Force like Granddad...but didn't make the "cut" for Colorado Springs, and picked up Annapolis instead. From there, it was a long, strange trip. My experiences working with Marines over the years informs me I'm not "Yut" enough...but working alongside the Army on the ground in Afghanistan, I seemed to tap into some unknown "Hooah". If I could do it all over again (and thank God I can't!), I'd probably have accepted that Army ROTC scholarship instead and tried to follow Dad's tracks in the Airborne. One thing that has always, and I suppose always will "bug" me is how I flew for a while...but wasn't an "Aviator"; spent several years driving ships...but wasn't a "Shoe"; and humped a lot of miles in the east 'Stan, but was never Infantry. Mostly, when asked what "MOS" I was by the un-initiated, I simply respond, "P-IR8".

I started in the Navy and after a short stint in college I joined the USCG and what a breath of fresh air. Enjoyed Big Navy but the small CG is nice especially when ever I rotated duty stations I ran into people who news friends I new. Not to mention the quality of people I have worked with and lifetime friendships.

Well, that's a difficult question to answer.
I spent 21 years in the Navy and Naval Reserve, 15 years in the Air Force and Air Force Reserve, and now I work for the Army.
Deployments to Desert Storm (Navy), Haiti (Air Force) and Afghanistan (Air Force).
When I was in the Navy, I spent time with Marines (as a Hospital Corpsman and as a Navy Nurse).
So, I've seen everything except the Coast Guard.
I achieved some great things with each of them. Granted, all of my time has been in military medicine, so perhaps jaded a bit, but in my experience, I can tell you that any issues that you might find... they are the same from service to service, but they are called different things and they wear different uniforms!
I don't really have a favorite... they were all pretty darned good!

Most likely, I'd go usmc. That way, same rate/mos as I know it would be possible, even down to aircraft platform in some instances, and I'd already be partly familiar with some of the general mechanics specific to the branch that I've learned about while serving alongside(aviation, mind you) marines.

When I enlisted it was my intention to be a medic. The Army wasn't interested in what I wanted at the time and said they needed Fire Direction Control Specialists so I ended up in the Field Artillery. Not a bad place. I met a lot of great men and women in uniform and I ended up doing 20+ years. I do recall one time though when I was sitting in my two man fighting position and I saw a jet contrail stretch across the sky and I said to myself; Dude that guy is going back to his base and he's going to enjoy a shower, a hot meal and a bed.......I should have joined the Air Force!

Well I wanted to go into the Army as a Medic but they weren't taking soldiers for medics at that time and they needed Fire Direction Specialists instead. So that's where I ended up in a Field Artillery unit. Not a bad place to be. Met some great men and women in uniform and made a career out of it. I do remember though looking up out of my two man fighting position and seeing a jet contrail stretch across the sky and saying to myself, that dude is getting a shower tonight, a hot meal and a bed. Maybe I should have joined the Air Force!

Air Force would be so much more luxurious. I've seen them at multiple bases and they have the best.