I think it always boils down to play style. For me, I find my stamblade very easy...but I've played him hundreds of hours so that's part of it.

A stam sorc build would have a relatively simple rotation. See Alcast's windwalker build. The bound armaments takes two buttons out of the mix...making them a once per load toggle. And the back bar isn't overly complex, although the DoTs are shorter now in Morrowind and could make this build slightly more complex.

I also find a magplar dps build to be one of the easier rotations. Instead of having a million buffs and dots, the secondary abilities tend to be specialty items...like having radient destruction on the back bar means you don't have to flip there every ten seconds for it, just when you're ready to burn down an enemy.