User blog comment:Lord Loss/Discussion of the Week: Greatswords/@comment-4783146-20120414110424

The monster which I ALWAYS use GS for has to be Teostra, nearly all his attacks leave an opening for a level 3 charge attack, and you can block that annoying charge! Only problem is it is hard to sever tail. (great teostra GS video. Not mine.)

The monster I would NEVER use GS for is any drome. (Bulldrome, Giadrome etc.) They are too quick and easy enough with any weapon.

As a rule, I would say big, slow monsters, or ones with annoying attacks are GS material. Small fast monsters and all bird wyverns are a definate no go.