Ok, I set the EVO next to the TP2. I didn't do any setup so the screen brightness' are not adjusted and I shot it by hand. Bottom line is that they are both good. Picking one over the other is like splitting hairs, of course the EVO is bigger, and when it comes to watching videos, everything else being equal, bigger is better.
In the dark:
http://www.youtube.com/watch?v=XnPPE57s4vs
With lights on:
http://www.youtube.com/watch?v=U_ye5sxF8Nc