honestly i love my chopsticks much more than the bent.  the bent seemed like it would be fun, but i just like a stiffer ski that can charge.  also, nothing that i have ever been on skis switch like the chopstick.  they are super fun and will never hook an edge or get squirrelly switch.  they give you the balls to ski choppped up terrain faster than you would on a normal ski.  the only downside to this ski is that it doesn't carve very hard on groomed terrain just because of the large turn radius, but that also makes it much better for going fast and this ski is almost impossible to hook an edge on.
the bent seemed fun, but it just lacks a bit of the charging capability of the chopstick.  also since they are a pretty heavy ski when that tip gets bouncing you can really feel it and it will sometimes lead to you hooking an edge if it really gets going.  it seemed to carve fairly well but nowhere near as well as the ep.  overall, would probably be fun, but i just prefer the chopstick.
the ep is actually the same stiffness as this years.... or so said the line rep.  i heard they were going to stiffen them up by 15% again, but it sounds like not, if they were it wasn't very noticable.  that being said, they are much more fun on groomers than the bent.  these skis can absolutely rail slalom turns and are by far the most fun fat ski i have ever been on in groomed snow.  when you get charging they get pretty sketch if it is chopped up a bit, so if you like to ski really fast and do lines go with the chopstick for sure.
anyway, hit me up if you have more questions, i have been on practically every rockered ski so i can definitely compare them for ya.