Actually, I'm sure I'll be in the minority here, but I really enjoyed my time with Rural Metro in Cleveland. Their equipment wasn't that great (old ambulances and crappy stretchers) but I learned so much as an EMT-Basic there, it was really great.
And, they transported to alot of hospitals, clinics and rehab facilities. Flexible hours and the staff seemed pretty easy to get along with.
Just sayin'....it's a thought.
Take care