Guild Wars PVE is very good, especially on normal mode. Hard mode gets very gimmicky, but the stories are entertaining across all three campaigns, coming up with builds is fun, and the hero mechanic means you can basically play it however you want to.
Random loot and creatures off lists is hugely advantageous for modding. Rather than editing each chest load or monster spawn, you just insert them into the relevant lists and only have to place stuff for fights you want to be unique.
Oblivion was good and bad in world terms. The towns did have unique architecture, and the castles were very neat and well thought out, but the dungeons all shared a very small number of tile sets and mobs: an imperial fort tile set, an aeylid ruin tile set and a cave tile set. That was pretty much it. Mobs weren’t quite that bad, but mods that added more hugely increased the entertainment factor for me.
As far as unique experiences for every character, meh. You aren’t really supposed to create multiple characters; that’s why they can all level up in whatever and become equally proficient at everything. DAO was intended for multiple play throughs, and capped out at something like 40-60hrs depending on how you played it. It locks you out of content based on your choices. Oblivion is designed for a single 100-200+ hr playthrough, and content doesn’t get locked out by your choices (so you can complete all the guild quests on the same character, for example). Mods massively extend the life of the game, and there’s a ton of content hidden out there.
Morrowind was definitely the superior game purely from a locational differentiation POV, as there was a conscious effort to make the whole place feel alien. And they also locked you out of some of the guilds/families based on your choices. You couldn’t be a Telvanni and also be a member of one of the other houses, for example.
I’d love it if they brought back the archetype families for this one, so that there’s a feeling of progression. You know, you go through your guild and then pick a single family that gives you a unique and very cool house (like the Telvanni Shrooms). It’d also be nice if they had various ways to upgrade the house with more functionality and the ability to generate passive income through farming or something. You know, your own little build-a-settlement thingy, that’d be neat. I’m sure a modder will implement something along those lines, seeing as they built a whole slave plantation game inside Morrowind. In any event, I’m incredibly excited for this game, and will probably pick it up on release with monies from EL BONUS.