I have had a few friends that rode the bents and loved them.. the only complaint that I have heard is they are a little heavy. As for the Bibby's and Ep's I've only flexed them in a shop and have not had a chance to get on them so I'm not much help there.
How ever you should also consider the Surface Live Life or Live Life 2's. I've had a chance to rid on their skis for the last two seasons and they are amazing.
The Live Life's come in a 179 and 189 with an early-rise in the tip, and a stiffer construction so you can mob anything and they will hold up well through it. Crush big lines, drop big cliffs, ect.
The Live Life 2's also come in a 179 and 189 but have a 3 stage rocker and are a softer more playful version of the Live Life's. This ski is going to do really well in deep snow, pillow lines, bc booters, ect.
The dimensions both the 179/189's are 140/112/132.
Plus Surface skis are bomber I have beat the shit out of them and they still hold up really well. They also offer great customer service, and if you ever need to warranty your skis, they get everything done in a timely manner and are there to help.
Its definitely worth giving them a look..
Surface skis.