XD
Wii. Nowhere near enough game that I'm interested in. I don't really care for Nintendo's first party offerings, and outside of those, I honestly haven't seen anything I'm interested in. Simple lack of games I'm interested in. And in my honest opinion, it definitely caters too much to the kiddy/casual crowd.

PS3. Lack of games I couldn't afford to buy anyway :P The PSN is the perfect place for them to spam ALL of they're PS1 titles, ALL of they're movies, all the anime, music, etc etc etc that they have worked with. But Rome wasn't built in a day, and I'm wishing it had been :P There's so many PS1 games that I never got the chance to play that I would simply love to do so on my PSP.

wii : few games+graphics
ps3: almost no games+price
360: no waffle maker attachment+microsoft points

PS3 - Lack of JRPG's

X360 - Unreliable, loud

Wii - Control system, give me my joypad.

Wii- lack of good games for those hardcore players, more about the simple and easy games

360- the risk of RROD, the loud fan noise, style of the controller sucks, and the annoying fanboys who always back up their consoles with pride like its a religion.

PS3- firmware updates and the worry about it screwing up your own PS3, delays of games, lack of interest in getting games (while there are many good games) they just make me get bored after awhile.

PS3 - Mandatory installs. I'll never get used to them (maybe add lack of good software as well).

Xbox 360 - Hardware reliability. I have to admit, I always turn on a fan when I turn on my Xbox 360.

Wii - Lack of good game releases. And yes, I've played all of the good games already (I guess).

PS3 - constant freezing on the web broswer

360 - paying for online( which i didnt renew gold membership )

Wii - barely any games interest me

oh really ?

(I know it's not that good, but I tried my best with Paint ^^)

Wii- The motion sensing is a great idea, the Waggle mote is not. Nintendo is still too kiddy.
Too many Gamecube, PS2 ports. Core games like Zelda, F-Zero etc. nowhere in sight. Flood of trashware.

360- RROD scares me. XBL hidden charge. 95% of games on PC (I do play my pc on my TV btw). DVD drive keeps multiplats from being all that they can be. No high def movie player. Extra charge for proprietary hard drive upgrade. Very expensive when all this is considered.

PS3- Delays. Firmware updates. Sixaxis a joke, they should have made the controller split in half would have been actual competition for the wii. Letting Microsoft do to them that they did to Nintendo. Expensive.

Wii = friend code and overall too restrictive online modes, rather have bluetooth headset vs room mic.

360 = hardware performance and overall value of product as compared to ps3. (i.e. 360+chargeNplay+wirelessAdapter cost >= ps3 w/ bluray cost), no Nintendo games.

ps3 = price, no Nintendo games.

Xbox 360 - RRoD

PS3 - useless BluRay-drive, because of installments

Wii - I am older than 14 years, so there are no games for me. I am a core gamer, can't stand casual games.