@ ceres
IMO Lair and Heavenly Sword are definately important titles as they are PS3 exclusives. But for me personally like I stated months before the first public demonstration of Killzone 2, Killzone 2 and Ratchet and Clank Future are my most highly anticipated games of the PS3 titles known about publically.
Though I understand GT5, FF and MGS may have a bigger impact than the titles in which I'm personally most interested in, they are the big game series people seem to talk about most (at least until the Killzone 2 demonstration) and have an impressive proven track record. Lair is new and far more experimental.