Is Paladin the least fun class to play?

[Vortok]

It's the fight mechanics that make the fights interesting or not.

A thousand times this. I don't need a tank (or dps) rotation that requires me to hit 25 different abilities with multi-branching split second decision making. The fight is what provides the complexity, and also the variety.

Look at something popular like Zelda or Pokemon. The actions available to the player are fairly straight forward. Enemy variety plays a huge part in making the game interesting from one encounter to the next.

Now some people really love classes that require you to manage 20+ abilities, so it's great to have them around as well as an option - but the encounters should be providing the meat of the experience.