These guys are going the way I'd go, the arctic and radium are well insulated and have the extra ankle support making them rigid. Either boot is a good choice but the adrenaline is a fantastic combo for rigidity, comfort and insulation for us regular guys not in extreme jumping/racing situations.
I had the same experience as Ditch Pickle, I tried so many boots for several years and then bought the Klim Adrenaline 7 years ago and fell in love, they're supportive, dry, warm and durable. The sole gets beat up cosmetically with todays running boards but lasts and lasts...the sole doesn't last as long on dirtbike pegs though.