7th gen.

But more seriously:

Final Fantasy XIII
Grand Theft Auto IV
Halo 3
Dynasty Warriors 6
Romance of the Three Kingdoms XII
World of Warcraft Expansions: Cataclysm, Mists of Pandaria
Skyrim

You're on a roll with threads lately!

@OP:

Unfortunately, this has happened far too often to me.

Uncharted 3 - I wouldn't describe Uncharted as a favorite franchise, but I'd still like to forget about Uncharted 3, which suffered from clumsy melee, poor pacing, and general problems with movement and aiming.

Halo 4 - it boasts gorgeous graphics, but lackluster level design, multiplayer, and storytelling

Halo 5 - somehow 343 made an even less impressive campaign, although it improved things on the multiplayer side.

Resident Evil 6 - with so many scripted events and the general cinematic presentation, Capcom would have been better off just making an animated movie.

Fable 3 - the game is rich in potential but let down by some weird design choices and a flat final act.

Then there are some poor entries that tipped the scales, i.e., turned a favored franchise into a non-favored one. Those include Infamous 2 and Second Son; and Killzone 2, 3, and Shadow Fall.

God of War: Ascension. It had some good moments but fell short of the other games in the series. Hoping the next one is the refresh the series needs

"Erase the blemish and wished they disappeared" sounds a lot more negative than the thread title's "didn't like".

Going by that first description I would mention something like;

The Legend of Zelda: Four Swords and The Legend of Zelda: Triforce Heroes. They are piss-stains on an otherwise nearly flawless franchise. I do wish they never existed.

Going by the thread title's descriptions I'd say like;

Super Mario Sunshine and Mario Kart Super Circuit. They are just not up to par with the rest of their respective series, in a variety of ways. Enjoyable, but disappointing.

Anyway these are just four Nintendo examples, but I could sit here for a while because I could list a ton of games from a host of franchises from everwhere.

Everything bomberman related after the 2nd Attack, Megaman X7-8, and the CDi games of Mario and Zelda.

Ratchet and Clank QFORCE

Super Smash Bros WiiU/3DS

Wipeout 64

All Final Fantasies after IX.

Most Sonic games.

Super Mario Bros. 3 - Maybe I just played the series in the wrong order, but I didn't fall in love with Mario 3.

Cant think of many others, specially since I cant just put all 3D Zeldas

Slarvax said: Super Mario Bros. 3 - Maybe I just played the series in the wrong order, but I didn't fall in love with Mario 3. Cant think of many others, specially since I cant just put all 3D Zeldas

You crazy Slar?! SMB3 is the best NES game ever, let alone one of the best Mario games made! : P Maybe you did play it in the wrong order..