Assassin's Creed: 360 vs. PS3

Which version of the game do you like better? How does one compare to the other, and what are some of their differences? Plus, if you had both PS3 and 360, which version of the game would you buy, and why? Would it be due to the fact you may like one system's controller over the other or not?

I just want to find out what version of Assassin's Creed is better.

i heared the A.i. is slightly worse in the ps3 version but the non- wonkey analog sticks seem to help in screen controlls while platforming/climbing