My triumph was nothing but trouble. The back button would randomly stop working, the screen would become unresponsive, it would take 5 minutes to get a GPS lock, I could go on for a while..
I have 0 problems with the Evo. Signal could be a little better, but that's a complaint about Virgin Mobile and not the phone itself. Big thanks to all the developers here for the root/s-off procedure as well as the custom radios and ROMs. I finally have a phone that i'll be happy with for a year or two.