I've tried the suggested classes on savage.

MNK has been slowed down with riddle of fire. I liked the positioning but it does get old fast. It feels its lacking something "extra" to do besides the same 1-2-3 combos and oGCD.

DRG did feel very fast at moments when their oGCDs are coming off cooldown, lots of weaving. But outside these windows you really feel the slow basic skill speed.

NIN has the skill speed buff making sure you are using your combos faster. It has nice spender abilities with 2 oGCDs. A mudra system that kept it fresh for me, although in the end its mostly suiton every 60s and for the rest using shuriken.

I haven't summarized self-buffs and raid-buffs for the rest. I do believe that NIN has a nice combination of speed and being engaging enough to hold interest for the player.

Also I tried BLM and strangely enough this class felt quite fast and engaging. Stance dancing while maintaining the buff and procs felt really good.

Thoughts?