We have an electric EZGo cart and like it. I do not tow a car with it, just to get around at the track. Had it 10 years, changed batteries in it once.
A good friend of mine used to sell and modify/lift golf carts. His opinion was gas powered carts are like everything else w/ a small gas engine on it, sometimes they can be a PITA. He preferred the electric carts.
One of my best friends and racing buddy had a gas cart and he liked it a lot better than the electric he had prior.
If either is in good shape, I think you'll be happy with whichever you choose.