Morrowind was overall a big improvement on Daggerfall, even though it regressed on some of the more avant-garde features Daggerfall pioneered. Oblivion was pretty bland and mediocre. Skyrim (while I still prefer Morrowind personally) drew together all the best features of the entire TES series. Whether you play TES for the graphics, the art-style, the plot, the world-building, the gameplay, the modding - whatever your angle - Skyrim was a huge step forward compared to Oblivion in pretty much every way. About the only relative downsides are that the expansions were kind of a mess and the stealth questlines weren't the best.
Yes, sure they've made compromises that aren't precisely to everyone's preferred tastes (i.e. hardcore Morrowind fanatics like me will never be happy!), but if you're arguing that the TES games are just unequivocally getting worse, you're talking total nonsense. Daggerfall and Morrowind did things that Skyrim doesn't, but Skyrim also does a hell of a lot of stuff a hell of a lot better than them, and it does basically everything better than Oblivion did.
Fallout I'm a bit more puzzled by, though. Genuinely don't understand all the hate Fallout 4 has gotten - imo it's easily the best thing Bethesda have published since Morrowind. It's arguably the first time they've had well thought out, well-written, coherent and thematic writing since Morrowind, it's the first time since Daggerfall that they've had any branching in the main questline, let alone branching as diverse and complex and well done as what Fallout 4 has, and it's the first time they've ever even bothered trying to have properly fleshed out NPC companions with actual personalities and stories of their own.
And sure, the settlement building is copied from a mod, but why is that supposed to be a bad thing? I think it's absolutely amazing and really refreshing and great that for a triple A mainstream title they've not only taken onboard features from one of the most innovative, creative and technically challenging mods out there, but they've incorporated it as a core gameplay feature and actually (like on balance imo at least) done a really good job of it. I definitely think there's a strong argument for Fallout 4 certainly being Bethesda's best game since Morrowind if not their best game ever (and I say that not because I'm a big FO4 fanboy, but because these games are balancing acts, and the things i might prefer about e.g. Morrowind or Daggerfall also came with huge drawbacks of their own).
Like, sure there are bits and pieces here and there that need fixing, but that's why modding exists.
The only two major, consistent criticisms I've seen are about the lack of nasty options (which is fair enough, although I think the latest DLC is supposed to be sort of an answer to that?) and the fact that the player character's voiced. And while I can understand people not being wild about the player voicing, I don't see why it's such a dealbreaker, especially if you look at it in context. Back in Daggerfall there was basically no voice acting whatsoever, then in Morrowind NPCs just got idle chatter and combat shouts that were identical for entire races. Then the player character started grunting and shouting as well, while we got mostly atrocious full voice acting for all NPCs - at its worst in Oblivion where you had the constant hideous spectacle of NPCs with exactly the same terrible voice acting constantly having the same stupid fucking conversations with each other again and again. A lot of us weren't convinced that this whole "more voice acting everywhere" thing was actually an improvement, but nowadays people think the lack of voice acting makes Daggerfall or Morrowind feel ridiculously dated.
So again, I'm not saying the voice acting thing isn't a problem, but it's clearly something that has its benefits as well as its drawbacks. And like, just as an aside, I've never seen people get similarly pissed about the PC being voiced in any other game, so I'm not sure I exactly understand the issue here specifically.
yes, pretty much every Beth or Beth-related game I've ever played I've had to mod heavily, I think the reason is that most of these games are just so huge that the devs simply can't finish everything in time for the deadlines, so they are forced to rely on the modding community to finish them.
I mean, I think the actual point here is that these games are so vast and so all encompassing that they are never finished and can never be finished. Daggerfall, Morrowind, Skyrim, Fallouts 1 through 4 - these are all absolutely enormous games by any standards, but they all have so much that was planned but never made it.
But for an illustration of what I mean about them being impossible to finish, look at the Tamriel Rebuilt project for Morrowind. It's a mod project that's been in development for about a decade and a half now. What they've released so far fully doubles the already enormous landmass of Morrowind. And it's not just empty space - it's richly detailed, beautiful, hand-crafted stuff, most of it filled with carefully thought out characters, dialogue and quests. And last I checked the mod isn't even nearly half finished still. And bear in mind, their idea of finished is "as full of characters, quests, etc as the locations of vanilla Morrowind". But as the modding of Morrowind has shown, there is so much more detail and richness you can add on top of that still.
And this is just the part of the Tamriel Rebuilt project focused on showing us the rest of the province of Morrowind. The original ambition was, as the name suggests, to rebuild the whole of Tamriel - and the province of Morrowind only makes up about a ninth of that continent's landmass. There is no finishing a game like this. Details could keep on being added forever.
In fact, in that respect it's exactly like Cataclysm! Only because Cataclysm's open source and using the technology and development cycle that it's on, you guys actually can keep on adding to it forever! Thanks to capitalism and all the rest of it, Bethesda unfortunately can't do that.