I really like my Minox 15s. I got them a few months back for a desert Muley hunt, just couldn't spring the big bucks for Swaros. The Minox are bigger and heavier, but you want either one on a tri pod anyway.
When it comes to good optics, quality is often in the eye of the beholder. To my eyes, the Minox are maybe 97% as good as the Swaros, for less than ? the price. I had no problem looking through them for hours on end.
If high power binoculars are something you are going to use a lot, and you can afford it, get the Swarovskis, or Leica Geovids. Otherwise, the Minox are an incredible buy and very functional for long rang glassing/hunting.