All I can personally tell you is that I love my Chocolate touch! It is quite simple to use and great if you want a phone doubles as your mp3. One of the things that I find to be the coolest is that when you are calling someone it has a sensor to see how close it is to your skin. If the phone is too close it locks so that you don't accidentally hang up on the person, but if you hold it away you can still reach your contact list, notepad, and txt message. Oh and when you are listening to music you can "Join the band" and play the drums or the piano along with the song....
But don't let what I said to be the deciding factor. I don't know about the Tritan and I'm not sure about the prices. But whichever phone you pick I hope you like it!