Bit of a mixed bag for me, I have all 3 consoles I've used the wii the least (as it was set up on the main TV downstairs and TV took priority over games (until we cut the cord a bout a year back).
I think the most I've used it was last week after picking up Paper Mario.
Between the 360 and PS3 it's a close call, I prefer the Joypad on the 360 (the PS3 stick dead-zones are just a little less sensitive than the 360's) however the D-Pad on the PS3 is a lot better than the 360's floaty effort (especially for 2D fighters).
Most games play almost the same on both consoles but that dead-zone on the joypad means that more often than not the 360 version is slightly better just because of the sticks.
I'm still debating whether I think Live is worth the subscription, as I rarely play online and I only keep it up out of habit and because of Netflix, but as I can also use Netflix on the PS3 I may give it up at the next renewal. PS+ on the other hand with it's free games is really coming into it's own (the 360's attempts to match this are no contest).