I have ridden DeBernardi, Surly, Fuji, Merckx, and Indy Fab.
So far, I really like my Debernardi best. Can't wait to try a Japanese-made track specific frame. Ganbarimasu!
TIP - Brett 12, the "Search" button is a huge help in a broad search like this one. There are a HUGE number of threads in this forum covering this topic. You'll get a overwhelming number of responses in no time!