I agree on the Leica. It is spooky what you can see. Eye glass friendly eye piece too. I was able to easily make out a scoring ring at 300m (about 1/8" line).
Swav might not be the best choice if you wear glasses. I was using one at a F class match recently and it was horrible. I couldn't get a field of view larger then the top of a pencil and a big blurry black ring. What I saw was good though.
Pentax ED glass is superb too and a bit less money. HOWA and KOWA have very very nice eyepieces. Less money too but the Leica was still the best.