I currently have an LG Optimus 2X, and to be honest I really like the phone, even in stock form. It has some annoying issues, like slow downs sometimes, but I'm sure every phone has these things.
One of the things I like about it, is an application called 'Smartshare'. This allows you VERY simply to select a network attached source (over wifi), and the destination (the phone basically), and play music, video, photo's etc.
Does the EVO 3D have this ability?