PSN is free and live is around $80 a year in Australia, so PSN automatically wins. A few things I like about live though are the demos they have for every XBLA game, the have a larger amount of demos for their retail games and they get a few cool exclusives that don't come on PSN (Super Meat Boy, Geometry Wars, Limbo).
I also find PSN store easier to use, I don't like how XBLA games are all split into different sectors and then I have to scroll through them using a broken D-Pad that keeps making me switch panels. It also looks less classy.
Bet with Conegamer and AussieGecko that the PS3 will have more exclusives in 2011 than the Wii or 360... or something.







