Yep, the Suunto MC-2G is my current 1st choice as well. It has an "international needle" just in case I ever make it to Patagonia. I also sometimes use the Suunto M9 wrist compass, so I guess great minds think alike!

I've never even heard of the fluid inside a compass thickening or freezing, but I tend to avoid such super-cold conditions. I'd think keeping it close to the body and warm, like on a neck lanyard, should prevent that.

Having dealt with compass bubbles before, I've wondered why capsules are sealed instead of having maybe a thick, flexible and removable plug to deal with that.

I also have a tiny little brass compass as part of my EDC.

I once ordered a K&R compass years ago, but was unimpressed with it.

The Magnetic North Pole does move around, but I suspect it has a much larger impact in Alaska and Canada than in the lower 48. NOAA offers a website that provides current magnetic declination for any location, if you want to update old maps. [edit: as ASKAR already pointed out]
http://www.ngdc.noaa.gov/geomag-web/#declination