I found it irritating that you couldn't use a staff as a melee weapon. So I agree with you there.
As for alternate attacks with a melee weapon, I found it to be redundant in morrowind. ( there were two or three different attack modes. )
I seldom use melee attacks when I'm playing Oblivion since I favor magic or the bow over other attack forms.
Skyrim might make it difficult for me to use a bow exclusively due to the slower attack speed, and the reduced backward movement speed. I'm also a little disappointed that I won't be able to block attacks with the bow anymore.