Hmm I main DRG & I enjoy it a lot. My fav DPS so far.
Why? I love the aestethic & theme of Dragoon, i love their animations & the rotation flows very well.

I really like RDM as well.
Same as Dragoon, I love the theme, aestethic, animations & rotation flows very well.
One downside to me is that it's a bit too easy for me personally.

MCH seems like a lot of fun too so far.
I love how they whip out different weapons to blast enemies. Rotation is fast paced & its' a very busy job. One of the harder jobs in the game to my knowledge.