I been playing Tomb Raider Underworld for a couple days. So fare it seems to be the best TR yet. The controls are a little different then Legend but once you get used to the controls, the game is amazing.
Crystal Dynamics did a very impressive job on the graphics. You don't need a high end system to play it with AA and High Detail enabled. The game ran very well with a AMD 4000+ 2.6GHz and a X1950PRO AGP. The graphics on this game make Crysis look cheap especially when you don't need a $500 video card and direct X 10.