While I know nothing about using wader in cold temps and water like the Kenai in December or Situk in March, my vote for the BEST wader is Simms. I have been a miserable bastard on fishing trips while wet due to crap waders, no good. I will take my G3 breathables any day. OTOH many guys I know, myself included, enjoy the comfort of Simms Neoprene bootfoot waders sometimes when it is nasty cold and you are just fishing for the day. You HAVE to have a place to dry them out at night. They each have there merits. If you are doing a lot of moving, G3s are your huckleberry, if you are sitting on your ass all day you will want the Neoprene. Again, I have no experience using them down to 0 degrees so don't take my word for it.
