You know people also said to me when I played Oblivion on X360 and PS3 that I need to buy it for pc because it is far superior and all those mods and other things that makes it more worth to play it on PC but I can't play it on my pc and the same for morrowind (and I have the pc version of Morrowind if you want proof I can show you^).
Well I never really got annoyed by the voice work in Oblivion it is not that good, true but that is also why I put subtitles on so I can also read it (just press A or X when a conversation begins and the characters stops with talking and you can read what she wants to say if you really hate it that much). The text in morrowind is maybe more informative but is a hell that you have to try all options in every conservation and hope that they will say something new.
What you are saying about the facts is something I never really liked... I loved to be the Gray fox of the Thiefs Gield, the boss of the Fighters Guild, The master of the Mages Guild and so on..
The Lore/land depends on your taste I guess. I really love the land of Oblivion and of Morrowind but if I have to choose it would be Oblivion though especially because of the jump in visuals/graphics... Standing there on a mountain where you can see the Imperial city tower when you are still tens of minutes away from it a feet...
Can't say much about the dungeouns, they didn't annoyed me in Oblivion and I am not yet so far in Morrowind to know how 10% of the dungeouns all look like (10% is just a guess of me).
