I love the Blade Lord's tornadoes and I am also a big fan of Elegon's floor.
Everytime I hit that fight on LFR I ask "Is this anyone's first time doing this fight?" and get silence. Then, 3+ people will plummet through the floor the first time.
Oh Force and Verve is my guilty pleasure. 1) I love the name of the ability (I cant explain why because I have no idea why I love it) and 2) I love watching people dart for the shields