What I'm really interested in, since I've already beaten both games, is the variety of mods that each game has built up. I really, really like mods that fit in with lore and realism, so things like extensions to the Brotherhood of Steel or a mod that lets you join the Enclave and complete an actual story-line is what I'm looking for along with things like visual enhancements and mods that mesh seamlessly with the game and lore. I'm not a big fan of adding things into the game that wouldn't be there in reality, for instance anime costumes, gigantic swords, imports from other games, unrealistic followers/factions/quests, etc.
So which game has the better set mods like that?