Just dropping in on this Forum, saw the snow tire question. I've had several on our Odysseys, have to say the best balance for me between performance, durability, drive-ability and cost is the Altimax Arctic, with the Dunlop WinterSport right in there (if you want a Performance snow, though I didn't have them on the van, only my Cooper).
X-Ice: Great tire, got noisy quickly, whined in the wet
Blizzak: Best ice tire bar none, Very good on snow, but squishy/soft sidewalls and wore out fast. They have a good name and reputation, but I like the General's much better (the Generals are actually a rebadged Gislaved, or so the legend goes...).
Winterforce: Sorry Herb, didn't like mine. While Really great in dedicated snow, they weren't that good anywhere else (squishy, better on ice than all-seasons but barely so, poor wet traction)
Anything With Studs: ONLY good on ice, Really Terrible elsewhere, HUGELY noisy, and Blizzaks/Generals are really close to being as good on ice.
Cheap Old School Snow Tires: See comment on Winterforce, add "noisy".
We have interesting snow conditions in western PA, similar to Toronto/Buffalo but not the depth, similar to Windsor but not the wind. LOTS of semi-plowed-road, icy/slushy/packed, and much wet/dry road driving. Not as much the "all-clean-snow-all-the-time" you can get in the Great White North. All-snow is actually easier to drive in than the crap we get!
Good luck with your choices! I'll echo the "dedicated rims" option as well, for the above reasons.
