Mine was and always will be Noby Noby Boy. The Train simulators are a close second though.
there are a lot that i absolutely love, but one that instantly comes to mind is the Darkest of Days quick look.
i can never pick a favorite, but this one is always always funny and entertaining.
That's definitely up there! But yeah, I could never choose just one. Though if I had to... it would most likely be nestled somewhere in here.
The QL where Ryan and Will Smith are playing the Kinect Disneyland game is pretty great. Will Smith running around his hands up screaming for extended periods of time is hysterical.
Also the Big Jeffry's bit from the Roller Coaster Rampage QL is probably my favorite thing ever off of this site.
It's too hard to choose a favorite. Is there an echo in here? Anyways I have a soft spot for the X-Men Origins: Wolverine quick look. Did a great job at setting the tone early on of giant bomb not taking games so damn seriously. Also began one of the best trends in this generation. Namely stabbin' dudes like uh uh uh uh uh.