Just installed a set of Paselas (kevlar but not TGs, the white/cream ones). Huge improvement in ride over the big 35c Schwalbe Deltas I was riding. Like getting a new bike going from 35s to 28s. Have also had Specialized Armadillos a few years back that I thought rode like crap.
Paselas ride really nicely and the other pair I had lasted for a long time with not very many flats and they are inexpensive. Would like to try Duranos as well.