I've lost some trust in them...
I used to love Bethesda before Oblivion. The game was a downgrade from Morrowind, besides the graphics. The combat was too easy, leveling up was too easy, characters were bland, and the voice actors were mediocre at best.
Fast travel ruined some of the experience, because you no longer felt small in the world. Oblivion just held your hand throughout the entire game. Sure I have the choice of not using fast travel, but the world was just so empty. It's not a bad game, to me, it's an okay game. I still liked it. Oblivion just did not live up to Morrowind's awesomeness.
Fallout 3 was fun for a while, but I have most the same problem with it that I have with Oblivion. I've been told that the shooting is supposed to be "realistic," it just relies too much on VATS. Like Oblivion, the characters are bland and the story is way too short. Games shouldn't rely too much on side-quests.