PS3: these are the top ten PS3 exclusives. All of these are retail games.
1 - 96.38% - Uncharted 2: Among Thieves (Action/Adventure)
2 - 95.05% - The Last of Us (Uh, hard to classify. Horror/adventure?)
3 - 94.75% - LittlebigPlanet (Platformer)
4 - 93.53% - Metal Gear Solid 4: Guns of the Patriots (Stealth Action)
5 - 92.63% - God of War III (Action)
6 - 92.56% - Journey (Adventure)
7 - 92.04% - LittlebigPlanet 2 (Platformer)
8 - 91.79% - Ico and Shadow of the Colossus HD (Adventure)
9 - 91.78% - Uncharted 3: Drake's Deception (Action/Adventure)
10- 90.56% - Killzone 2 (First Person Shooter)
So.... a bunch of shooters (killzone 2, Uncharted 3, Uncharted 2) ... two shooter hybrid games (Metal Gear and Last of Us) .... So basically 5/10 shooters.
Two platformers (same ip as well) 2/10 platformers. One action game (1/10 action) and two adventures ... one of which is just a PS2 port collection which says more about the strengths of the PS2 than the PS3 for (2/10 adventure).
4 genres = variety compared to 360's 2 genres (more like 3 since Fable barely misses the cut ... maybe the remake will do well enough to make it since Fable 1 always was the best).
Facts are facts. Both systems have half of their top 10 dominated by shooters ... which is to be expected this being the generation where shooters have skyrocketed in popularity. After that, the list is kind of skewed by 360's very high quality Forza franchise which, due to its higher scores, bumps Fable off the list which would round things out more as the major action/adventure exclusive 360 offers.
PS3 offers a platformer in the way of Littlebigplanet and an action game with God of War.
Seems like both lists are rather similiar when put into perspective. When speaking of 360's exclusives it has always been Halo, Gears, Forza, and Fable as the big ones. Fable as a franchise has sold 12 million (according to vg chartz) which is just 3 million behind Forza. It just so happens that Forza's high scores bump Fable off the top 10 list. If it were on the list 360 would have 3 main genres compared to Sony's 4 ... not that big of a difference.