It's obvious many people never experienced a well executed BR... vent helps ^^. If you stack 2 magic spells from 2 different classes, then pile on the weapon skills... the guys that stacked near the end will do massive damage. Ever seen a 1500~ damage Chaos Thrust on Batraal? Now imagine the 2 spells do either DoT or 300~500 damage, first 2~3 weapon skills do 400~600 damage and the last 2~3 weapon skills do 1000~1500 damage. That gives you a potential to do around 4000 damage on Batraal in less than 5 seconds. Did I mention if you do a defense down debuff you do more damage? When regular hits do more damage you get more TP. Then you can pile on other stuff and put restraint debuffs on the mob.

The ONLY downside is getting locked in BR. That can be solved with a close knit LS or even static party that uses voice communication. I only hope BR ver. 2 will be much more fluid while keeping or enhancing the effects of BRs.

Edit: You can even do mage DD parties. Two WS from 2 different classes then pile magics... damage is comparable or better if you tune the magics to the mob's weakness.