help me decide

[Emu]

I want to get a new PS2 game but I'm conflicted in what to buy.

The local Gamestop has three games I want for about the same price. I can't decide between these:

Okami ($35, with 3 copies left -- I'm leaning mostly toward this one)
Katamari Damacy ($30 with one copy left, probably going to sell soon)
Shadow Hearts ($30 with two copies; don't know a lot about it but I hear it's good)

HELP ;(