I went to the store today intending to buy a game and i found myself in a delema. WHICH ONE!?! i like all of them.

i suggest you get GT4

no point saving up for a psp now - the US launch is also complaining about defects, and anyway, since psp is aiming for a 10 year cycle, why hurry - wait until they lower the price a bit (or at least fix some bugs and improve it)

I don't think anyone on this forum can really help you because it's up to yourself and your preferences. Go find some reviews on google.