trying to make the decision myself.
For me the floating option was a must. If I'm going to spend a few hundred bucks on these, and they will last years, I may as well get the floating ones for a little insurance on our thin ice down south.
That brought me to Striker vs. Arctic Armor.
Strikers have better ventilation, more pockets, better designed pockets, adjustable gator straps, etc..
For the $100 I would save buying the Arctic Armors, I can get all those extra features in the Strikers.
my $0.02 (US of course)