Similar to handheld satnavs, the ideal compass for land navigation has not in my opinion been made yet. As an alternative, it is a matter of selecting a compass with the most appropriate features, such as ease of use, manufacturing quality, plus the physical features you need for your task in hand.
Like Callum, my primary compass had been the military version of the Silva type 54 followed by its civilian counterpart. Then, in the mid-00’s, when Silva moved its manufacturing to the Far East and the business was simultaneously bought by a Fiskars, better known for its scissors, axes and knives, their compasses build quality substantially deteriorated. This reality only became apparent to me when I was loaned a Suunto compass, an M3 global, by one of the MRT’s I was working with.
The M3 Global is now my mainstay for most regions I visit. In the Polar Regions I carried the MC-2 G/IN, which is slightly more accurate and therefore more appropriate working in regions where bearings are taken to far away features.
This M3 Global is available in two versions, one balanced for the Northern Hemisphere and the other, which I carry, balanced globally, they cost around £25 & £35 respectively.
The MC-2 G/IN cost over £50. Personally, unless you are intending to visit desert regions, which include the Antarctic, I wouldn’t bother with this compass.