I have to admit, this is the first year where I'm actually EXTREMELY bothered by the amount of "corridor > rails > cutscene > corridor > setpiece" gameplay being shown.
I mean, ME3 looks great, as a digital movie. But playing that... what's there to play? Move from A to B, trigger cutscene, shoot some dudes in a room, get teleported to the next room, shoot... we complain about on rail shooters, but is this much different?
And a shitload of games showed that kind of gameplay. As I said, I'm usually not bothered, as this is just a show and live demos are balanced around being spectacular. Uncharted 3 was the same, but I'm confident in the final product the balance will be closer to 80% gameplay 20% cutscenes, instead of the opposite we see now.
Still, basically EVERY game shown has been like that. Even those I liked, like Tomb Raider, or Arkham City, are simply set-piece to set-piece amusement park rides. Battlefield 3 was particularly offensive. Amazing graphics, but there was no "game" on show.
It's the worst thing about this E3. I'm not seeing gameplay. That's when you see something like Skyrim and your mind gets blown. I'm not even a big TES fan, but it's so much better than anything else on show it's not even funny.