Not true either. An E5 in the military gets the same base pay in any branch but the Air Force promotion is a lot slower than the rest. I would also say that technology is the same too.
LGray, one thing you can see is everyone has a loyalty to their own banch and that should tell you that no matter what you made a great choice for yourself. I don't think you'll regret one minute of it. Take advantage of any schooling you may be offered too. Remember, it is what you make of it and I think you'll to far. Keep us posted, I can't wait to read about your career progression.
One thing I could see happening is you eventually going active duty (unless you already said that and I missed it in another post. In that case nevermind ... 8-) )