This season there's a ton of choice for what you looking to do. Hopefully you may find this somewhat helpful -http://aslansskiblog.blogspot.co.uk/2012/12/guardian-duke-epf-mfd-and-adrenalin.html?m=1
As said really think about what you need from you binding, don't hinder yourself with dukes if you don't need them. However likewise don't go for barons to try and save some weight, if your 185lbs and are hard on your gear. Otherwise you'll end up breaking them in under a season. Not saying their a bad binding, just don't underestimate your own ability to break your bindings.
Check my blog for updates and reviews: http://aslansskiblog.blogspot.co.uk/
Joey -Formerly *III.JVD.III*
I post from mobile the majority of the time, so if the above is incomprehensible, I apologize.