I would have to agree it's about the player, more than the power set. Been playing on Champion server as a energy /energy blaster. it's great for soloing i've found. I haven't ever considered putting kb's in any of the powers to decrease the whole kb issue. I don't use power push due to energy torrent(in groups I use it more for defensive purposes) along with the Secondary Power thrust(which is the only power I have put a KB enhancement in) been playing my main (Jugg Beamer) since 2002. Prefer to while in group do the assasin route and knock one off than kill and repeat when the mob mass is down I will use my nova to take out and finish the mob off in some missions I will use nova right after the tank pulls aggro to kill minnions and LT's depending on their level to me. Usually use nova in combination with buildup if not a red and yellow as well the yellow is actually more important to the red insiration to boost the number of hits per mob of nova.