So interesting to see how different people's opinions can be.
ie for me.
Morrowind is simply one of the most amazing most amazing games I have ever played, back in the day it was just unbelievable the scope of the game, unlike Oblivion, it actually felt like a world. You could walk around and find completely unexpected things, the slave traders, the random mushroom village etc. Architecture and culture changed drastically depending on where you were. Oblivion to me just seemed so GTAish, the entire world had that "brown filter" look and all the towns were the same, plus the world was kinda small, especially when you see a map of Cyrodil and expect it to be scaled appropriately from Morrowind, being much bigger instead of like 1/5 the size or something. Also in Morrowing I loved how the "quests" seemed real, like someone just brought something up in conversation and it is up to you to figure it our, whereas Oblivion it's MMO style. Plus fast travel.... why couldn't we get the giant fleas again?
Final Fantasy 13, I agree on some points, the gameplay was linear (wasn't meant to be quite as bad, the original saw A LOT more content, but it was going to be something ridiculous like 7+ DVDs on 360 or something, basically Pulse was meant to be pretty big) but the story is simply one the most engaging in the series imo. Also battle system is interesting, just the implementation wasn't all it could've been. The strangest thing was the poster said this in comparison to FF12, imo far and away the worst in the series, terrible gameplay, worst characters in the series and the story was bland and really quite generic, plus it was set mostly in a desert.
I found Fallout 3 an absolute atrocity, it took the amazing old school fallout games, took away everything that made them great, babied it up, grabbed Oblivion, changed out brown filter for green and completely destroyed the world and story of the series. The broken engine didn't help it much either, it caused my first X-box's 2nd and final RROD. New Vegas at least TRIED to rebuild the shattered story but it was so bland and the engine apparently got even worse over time, it couldn't run 5 minutes without dying. I thought the engine was bad enough with Oblivion, where on my first X-box the game just decided there were no longer interiors in the game. At all. Any save files.
For myself I'm not really sure, one definite one is World of Warcraft... it really needs no explanation... I actually bought 3 of the expansions from that monstrosity. I also regret it's existence, can't help but think how many great Blizzard games we could've seen by now, not that Starcraft 2 isn't amazing.