Xenosaga 2: Xenosaga was a good game, good depth of story, intresting battle methods, tactics, beautiful as any game of that time. Xenosaga 2 was horrible, boreing, annoying, and it turned its own story upside down and undid everything you learned in Xenosaga, It completely changed its combat stytem, to an annoying one where even random battles that you need to grind to level up to beat the boss takes in excess of 15 minutes, also eats up alot of your resources so you need to rest often, then after you beat a boss, your relegated to watching more crap go down the drain in the form of a 20+ minute movie, it also focused on everyone but the two main characters to an annoying degree. (Edit:) I forgot, Xenosaga 2 is the ONLY RPG i have given up on half way through, any others even if I didn't like them i played all the way through.
Spore: Promiced the world and gave you, hours, and hours, of the same damn thing, when you first play it, you go wow this is cool, i can adjust the devlopment of my own species until its intligent and forms tribes, then you get into space, the story demands you need to go to the center of the galaxy, the only way to get there is to SLOWLY move from star to star, or if your lucky find a wormhole thats kinda close, which you then loose and can never find your way back home again, once you get close you run into the Grox, who are horribly overpowered and nearly impossible for you to deal with without spending 20+ hours JUST grinding your stupid colonies for spice, gee hours and hours of the same thing without any changes in a game that promiced fun intuitive and creative play? no thanks.
WoW: everything that i can say about this game already has been
Final Fantasy X, X-2, XI: Also everything I can say about these have been
ALL SPORTS GAMES with the exception of blood bowl: They are boring, especially the ones that let you customize your team, but otherwise their the same damn annoying thing over and over.
Prototype: It had promise, but its story was too short, and too stereotypical, government trying to control disease to make super soldiers, gets out of hand, yadda yadda, dry and old.
probably a few others im not thinking of right now.