Samsung galaxy s SL or xperia x10?

hey guys i wanna raise a opoular question i.e galaxy s sl or xperia x10.Actually im confused which one 2 buy cuz both are pretty nice at their respective status. im a gamer so i really want a multitouch at the same time i need a nice camera also.can anyone plzzz tell me which one 2 by answers with reasons would be highly appreciated thx i hope ull pay attention on this questio