A 1366x768 set is a bit too resolution, for text it's fine, but for physical workspace you just don't get enough
For gaming a 1366x768 set is great, it means you don't need a high end PC (unlike a 1920x1080 screen) It'll display 720, however 720 is lower than native so it'll need to be scaled upto the panels resolution.
I had a 32" 1366x768 for a couple of weeks, and 42" 1920x1080, and 40" 1920x1080 screens. The 1080p screens offer higher resolution (better for windows, gaming and PS) if your PC can handle it. I had no such problems (sig machine) Oblivion at 1920x1080 with no AA was perfectly playable outside.