This is one of those "well my brothers a cop; I heard that; if it's a Sunday and the officer is wearing parka" kinda thread.
I got pulled over by a VA State Trooper (on a motorcycle) a few weeks ago. He was very professional and didn't give me a speeding ticket for doing 41 in a 25. I was honest and I am sure he had a man-crush on me and my truck, but that's beside the point.
Over the years that I've lived in a half dozen states, I have concluded that generally State Troopers are a far more professional group then local PDs, Sheriffs, etc. I don't think I've seen so many overweight Sheriffs, than here in VA. At least every State Trooper I've seen (regardless of state) looks capable of catching me on foot and putting a beat down on me if necessary.