After finishing the quest for the Harmonious style yesterday (it was a pain for me as a goblin *g*)
I played around with the Tiger/Jin Stance and i must say you get out of endurance (ooe) veeery fast in Tiger Stance.
The 20% Crit Bonus is nice.. but after 2 finishers you are ooe and have to wait to use another chain/finisher.
I dont think my DPS went up incredibly with Tiger using bare fists.
So i went to the Broker and bought some blue bladed staff (there was not one yellow 2hander at the broker with decent dps ratings) and went training in 2hand piercing and bladed staff

My Skill is around 160now in 2hand piercing and i can see some very good hits from time to time 1800-2000dmg with a single hit (the 2handers are slow though)
I was speaking to some other Monks on my server yesterday too and i found a drunken style monk (rare.. very rare) who is staying in the 10% haste stance most time and likes it.. Ill give that a try too when i have got the time

I like the moves with a bladed staff alot more then the "boxing" moves you can see using fists.
But they could have done way more of that.. its like 2-3 animations for x different attack skills..
Just go to a kung fu school and watch someone practicing forms and you will notice there is more than 2-3 attack strikings you can do with a bladed staff

As far as I can say (for me)
Naked Fists - dragon style
2 Handers with crit bonus- harmonious
Gbrap -25 Goblin Monk