I finished LoL 2 and man, that game was brutal: just no explanation of what anything was, and having to combine items...Lands of Lore 2. - I really liked LoL 1 and then I installed LoL 2 and I got this... this... abomination! And those horrible FMV sequences. And the actors, oh jesus. The jungle city made me quit it then.
Warcraft 3: Quit around the time when Arthas was killing citizens in a village or something. The "story" was so boring and predictable... the same shit story they used in Diablo 3 and Starcraft 1 & 2. That guy was good but is now evil, I'm good and things will work out right... wait, what? BETRAYED !!! Gosh, well, I'll just try this here again on this here next mission and ... BETRAYED!!! Now, that NPC was betrayed! Dang! Repeat 47 times. The end.
DE: IW - for all the reasons noted
Scarface - wow, what a pile of garbage. Wanted to be a sandbox game like GTA, and just stunk. Hit a guy with a bat for about 15 minutes and he just kept getting up. Kinda got mixed messages from that.
EOB 3 - somewhere outside, I just said this isn't' the EOB I remember and quit.
Doom 3 - about the 35th lights go out and monster JUMPS OUT BEHIND YOU!!! All though I did go back and finish it just for the sake of finishing it.
Bioshock 2 - I just didn't want to play as a lumbering Big Daddy. I liked the first Bioshock, the second I just can't plod around for more than 30 minutes. If I want to walk around like I have shit in my pants, I'll play Morrowind with a 12 Speed.
Mount and Blade: With Fire and Sword - Everyone in my little group was murdered almost instantaneously in the first fight. All shot to hell. A better man would stop and say "This is not the Mount and Blade I love, I should try to approach this differently." However, I am not such a man. I stopped playing and never looked back.