celsius, no question.  i got a pair of cirrus this season and theyre pretty good.  my feet havent been cold all winter, the lacing system is nice and tight, and the colour scheme is cool too.  the only downside is that they are wide in the heel, but the boomarangs worked well to offset that problem.  the inside drawstring can also slip, but this only happened once to me.  quite soft and very comfortable, and i paid $208 taxes in for em.  burton is gonna screw you over.  you'll end up warranty-ing your gear multiple times and in general it is poorly manufactured.  plus you pay more money for less performance when youre dealing with burton.  nuff said, celsius is independent, rep em all the way.

oh and im a size 11.5 normally but the cirrus works for me in an 11.