12 Xbox 360's
1 PS3
My first PS3 had a broken blu-ray drive out of the box. I rarely use my PS3 except for the occasionaly blu-ray movie and PS3 exclusive.
I had a launch Xbox 360. I got it on launch day and bought Microsoft's "extended warranty" for $60. I think they quit offering the extended warranty after the RROD "scandal" went widespread. Anyway, they replaced about 8 or 9 Xbox's under the extended warranty. One of the replacement consoles was broken on arrival - the disc drive would not open. Anyway, they kept replacing my launch console with other "refurbished" launch consoles, and well...none of them were really fixed because there was a design flaw (too much heat). But, the patch-jobs didn't last long, so I went through 8 or 9 refurbished consoles over the course of a few months. When the warranty ran out, I bought a new console with the new motherboard, and it lasted a couple of years. Then, I bought an even newer xbox when that one broke, but before the new "S" model Xbox's came out.
Of course, I use the hell out of my 360. I'm just hoping this one lasts until the "new" consoles come out.
...I do most of my gaming on Xbox 360, then on my pc gaming rig, and then on PS3. The Wii only gets a look in for Mario titles and an occasional exclusive.