-TES (III-V at least) no amount of mods can fix their gameplay and I really have trouble getting past gameplay to enjoy other things a game may offer.
-Uncharted far too "Hollywood" for me. I was hoping for more of an adventure game than an action game (esp. when the action isn't anything special; ironically I enjoyed Tomb Raider because it's combat was at least better)
-Mass Effect 1-3 Sci-fi, again just not my thing; but the gameplay, again, did nothing to interest me either (even the later titles which focused on it much more)
~many others, but I don't want to go on. Realizing I might be a bit of a hipster... f*** :/
Capcom just announced and cancelled a new MegaMan game within the same hour...
Dark Souls. I'm going to give it another try, but either the combat is really poorly tutorialized or there's something about it I just don't get, and this is coming from someone who plays a decent amount of action games.