I currently own Hyperions in 36, 24, 17 & 13 mm, plus the Orion Stratus version of the 8mm, and I like them a lot!
Although they are big & heavy (only real down points), I find that they give good wide views and quite reasonable image quality in my 12" f5 dob.
The only other ep I really use is a recently purchased 12mm Pentax XF: it's smaller, lighter, does give a better view (although not 'hugely' better to my eye) but not as wide a field of view as the Hyperions; and a Burgess TMB 'Planetary' 6mm which gives superb closeups of the moon indeed!
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