Monk has a pretty good flowing rotation once you get it, and honestly I don't think getting it is that hard once you try it for a while.
Probably my favorite Melee DPS job, animations are super nice and the overall DPS is very good.
It has some truly janky AOE when leveling though, until you get to 45, you have to AOE, Single Target, AOE, AOE, Single target ect to cycle forms properly.
Ninja you only use hide prepull to reset your Mudra Charges, the idea is Mudra into Huton, Hide to reset your mudra, go. Its pretty easy and inoffensive.
Instead of Sam on Steroids I find its more Monk on Sleeping pills.
I find it very fun during burst and openers, but outside of that its a little 1,2,3, 1,2,3. untill everything comes of CD.
Cant speak for the other two as I don't heave enough experience on them to make a compelling case.