1) PS2
2) DS
rest is a mess. but whether it's rpgs, action games, platformers, flight, survival horror, or just about every genre, ps2 destroys hard. rpgs being the category more than any other with ease.
ds just has a bit of everything and great at everything, in a surprising number of genres at that.
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The King Wang.
Listen up Urinal Cake. I already have something that tells me if I'm too drunk when I pee on it: My friends. - Colbert.