Going to throw in a few more games:
As a huge Teenage Mutant Ninja Turtles fan for nearly my entire life, I tend to be pretty adamant about how those games play. I'll still buy/play them even if they're terrible, because I'm a collector, but if it's rubbish, I definitely know it.
A majority of the games released this millennium have gotten spite on levels that boggle my mind. The Konami games were decent to good, and yet, nearly every magazine and website gave them horrendous reviews. While most were not on the level of the earlier games, they were at least enjoyable enough for me to make several plays through each.
When Ubisoft took over the license in 2006 for the upcoming film, they ended up releasing a game that was basically "Prince of Persia lite". Sure, it was short and needed a lot more combat, but it was okay. Still, it got snubbed hard. The GBA game ended up compared more favorably and rightly so, however.
Then there was Ubisoft's releases from last year. Turtles in Time Re-Shelled LIVE Arcade and PSN got my vote for "GOTY" just because I had so much damn fun with it, giving it more playtime than any other game I had purchased that year. However, it was again given horrible ratings in the media despite the fact that it improved on the original in literally every way possible. Somehow it made ScrewAttack's biggest video game disappointment of all time, despite the original being their #1 beat-'em-up. I just don't understand people sometimes.
Then, there was TMNT: Smash-Up. It was a Smash Bros.-like game that was co-developed by ex-Team Ninja employees as well as Game Arts, who worked on Brawl. It was majorly overhyped and underdelivered, true, but it did get decent reviews (most publications gave it something in the neighborhood of a 7/10, which I had done myself prior to professional reviews releasing). However, because of several things (three Rabbids shoved into the game in a cast of a measly 16 characters, virtually no representation of characters from the many different incarnations, as they had indicated there would be, and very little to unlock), there was a lot of fanrage and they ended up missing out on what was genuinely a solid game with elements from other fighters such as weapons clashing and so forth.
(Ubisoft's third game that year, Arcade Attack for the DS, genuinely was trash, unfortunately).
I'd also like to throw Psycho Fox for the Master System into the mix. I love that game to death but it seems that other than similar games on later consoles, it has been ignored completely. I'd give anything just to have it on Virtual Console, let alone a remake/sequel.
