Between 5-6000 getting off the line. By the time you get to 5500 in second you are pretty much at the speed limit on surface streets, so the shift pattern goes 1st-2nd-4th. I then tend to cruise at 3000 rpm in 4th which is pretty much where a second gear 5500 rpm shift point drops you.
Gas mileage is not something I think or care about.( Unless the fuel light comes on!)
EDIT:
Damn Zombie threads. Made me go read the whole damn thing to see if I had already posted and if so see if I was consistent!