I've used Silvas, Suuntos and Bruntons for 45 years for rough surveys, wilderness routefinding and backpacking.  Like a lot of technological gizmos compasses increase in cost as precision and durability increase.  There are trade-offs.  For me compasses are like firemaking - carry redundancy.  So here's my take - for map orientation and cruising from a map the Ranger type is best.  My old Silva has served well for 40 years - don't know what's up with those today.  When marching the handbearing compasses are best - I now carry a fairly new Suunto combo compass and clinometer - accuracy is high order (est. to 0.25 deg.) - but you'll blow your $100 on the compass alone.  It is not best for baseplate/map work.  Finally, the top of the heap is the Brunton Pocket Transit.  I have one nearly 45 years old and it's a gem.  Heavy as lead, faultless accuracy (you could, if careful, survey with it), tough as nails.  The real thing will set you back more than $200.  Knock-offs for under $100 - but I wouldn't trust them.  I usually carry two of these plus a Marbles Arms pin on.  I don't usually  <img src="/images/graemlins/crazy.gif" alt="" /> get lost!   
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See 'Ya Down the Trail,
Mike McGrath
"Be Prepared"  "For what?"  "Why, any old thing!"  B-P