I liked all of the enemies in Morrowind and Oblivion, even the annoying Cliff Racers!

By the time you've been playing the games for awhile though, you start seeing the same enemies everywhere and that gets boring.

Please try and add as many different enemies as possible. Also, try and make more enemies that don't appear until very high levels.

enemies that don't appear until higher levels?
that would actually be really cool
to still get the "oh [censored], what was that?" even after a few characters and several dozen hours of gameplay

It would be intresting to meet up with enemies that appear and move around a lot. Kind of like those 3 pokemon in the old gold and silver games.

If you mean by variety then YES! but NO! to the level scaling.

They should refer to a D&D Monster's Manual for Monsters, then add their own.

I know how you feel about the level scaling. I wouldn't want the majority of the enemies you face to be level scaled. I think whatever enemies are in whatever area, that's how they should be. It would be nice once you are at a higher level to start seeing some crazy new enemies that can challenge your abilities.

I think some necromancers should be able to make more than normal zombies...
Not trying to turn this into a zombie game, but more physical variation of the undead would be kind of nice
(Like some can be huge masses of flesh, some could crawl really fast, and a few could just be odd fusions of people, weapons, and animals in one body)

*Carried over from Ideas thread*

They should keep some of previous creatures but add a variety of new ones.
It would be nice to see diverse and improved bestiary

We need feral kajiht...

It would be easy enough to variate monsters giving them different surnames and skins, like weak goblin, clubber goblin, armored goblin etc.
But as you say the more variation the better, though they had many varations of human npcs, which was good.

As far as animals, maybe something like mammoth.

Yep, that's one easy way. Take a page from Martigen's Monster Mod for Oblivion (among others)... But don't go quite as far. A well-done retexturing can give you a new enemy with relative ease. Keep them subtle, and have a few. NPC enemies like goblins can have variation by giving them different equipment. And the bandits/adventurers can run the gamut. Personally, I don't think either Morrowind or Oblivion had too few enemies - but the number they did have could have seemed much more vast if they'd employed some of those tricks to greater effectiveness.

I have to admit, Oblivion's selection of enemies did get a bit repetitive for me after playing for a few hours. By the time I was level 20 I would encounter the same type endlessly. I seem to recall encountering a huge army of Atronach's once.

The enemies themselves are fine. They're all impressive in their own little way, but the problem is I want more variety. I know it's a lot to ask since Bethesda literally jam-pack the game full of detail anyway, but more wouldn't hurt.