Well let's see:

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Halo - beat Halo 1 three times so far but Halo 2 only once

Each Prince of Persia game - at least six times each game

Final Fantasy X - loved it, kept playing and beating ^_^

GTA 3: oh, eight times now as well as GTA San Andreas, seven times, many times just having fun with the cheats ^_~

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Currently on hold, waiting for the new games ;)

Ahh, soo many games, too little a list. But anyway I managed a list, in no particular order:

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Assassins Creed

Heavenly Sword

Halo 3

Crysis

Metal Gear Solid 4

Well i suppose the Wii will be around for some time longer as it is the 'new' one, I expect the PS3 is in a simliar case. The 360 has been around longer than the others, so who knows, maybe something new from Microsoft:question:

But I don't really think any 'Next gen' consoles will arrive for some time to come. n_n