IMO, for what you are talking about get something rockered, and maby a little skinnier. Reno Rockers, Obsethed, something like that(I'm just thinking of pretty soft skis with a somewhat long low profile rocker, those come to mind). The bit of low profile rocker makes the skis more fun for what you are saying, and not having camber pushing down the end of the tips in powder makes pow more fun. If you're set on line and apparently like soft skis, and can ski pow skis all over...EPs would be better than Lizzies.
glad you're saying this- it seems that most of this site likes their skis no matter what and thinks they kill everything(with the exception of people who can't ski pow without a 120 waste), ESPECIALLY lines.
I think EPs are the most fun all around of the 3 Pollards, but fun as in jibbing around, not as in charging(none are good at that..).