Hmm, well personally I think I played the Wii more out of any of this gen.
It had some very large/fun releases like SSB Brawl, Super Mario Galaxy (2), DK Returns, Kirby's Adventure and Metroid Prime, but had pretty much no third party support and a lot of games suffered the "Ok, we MUST add something motion controlled!" thing devs had going.
The P3S got it's fair share of use from me too, Little Big Planet, Dragons Dogma, Batman AA and Dark/Demon Souls are games that buying a PS3 was worth it for (Let not forget Portal 2 and Skyrim... but those are better on PC anyway).
The controller was solid, and the whole 'corded and wireless in one' design was extremely nice.
The 360 has XBLA going for it, the Wii and PS3 don't have the online component down quite as well as the 360.
None of it's games really struck me as 'must have' that weren't on PC or PS3 anyway and it was the most prone to breaking (though not too much more then the PS3).
I guess you can disregard my opinion here if you wish, as I don't actually own a 360.
Who won the generation though? the DS.
There are more great quality DS games then there are quality Wii/PS3/360 games combined and though most devs felt like they 'had' to make use of the touchscreen it was usually only in good ways, like easier menu navigation and such.
Not to mention it sold a whopping 150 million units; the Wii, PS3 and 360 only managed 100m, 70m and 60m respectively.
These figures don't include 3DS sales btw, I consider the 3DS a completely seperate console.