Okay I'll say it...
Pokemon Black and White. It's more than just the Pokemon models; the touch interface from the previous games was great and it is no where to be found in these games, there is not enough of the Triple/Rotation battles, some abilities are broken or useless (Super Luck and Gluttony, respectfully), the story focuses on N and not your main character, Team Plasma is a joke, and the game overall is not memorable.
I don't want to hear about how the third installment of the generation (Grey version) is going to fix all the problems or make the generation better. We just need to move on to the next generation and try again.
Also, bring back Megaman Legends 3 into production.