Fahrenheit: QTE after QTE after QTE, there's just no consistent gameplay system whatsoever.
Fallout 3: Granted, it was a step-up from the lifelessness of Oblivion, but it still lacked soul, which FO 1 & 2 had in spades. In fact, I think I'm pretty much in denial about the existence of FO3. It's just not Fallout, however hard it tries.
Resident Evil 4: it wasn't scary, it was just... silly. And cumbersome. I hated it.
Tales Of Symphonia: In fact, my very first thread was about this game. I gave it a lot of chances, but I just can't get past the characters. They're quite simply the worst characters I've ever seen in a game. I'm selling this piece of tripe on ebay.
Gears of War: more like Gears Of STUPID. No really, it's the gaming equivalent of wrestling matches or The Fast & The Furious. Apparently, MEN are supposed to LIKE THIS. Because it's VERY MANLY. Fuck that shit.