[mch62 (Mark)]

My preference for planetary viewing is to use the trusty old Orthoscopics and a good barlow or preferably a Powermate.
Orthoscopics excel in planetary viewing and give a very natural and sharp image with little light scatter and black back grounds.

Do a quick search for planetary Ep and see how often Orthos pop up!

Most probably not good to use in very fast focal ratio Newt , although they work great in my f6 and a friends f5 newt .

University Optics orthos are a respected EP in Orthoscopics or you could spend more for Taks or Pentaxs.

One point though with short focal ratio EP like Orthoscopics is the eye relief is small and on say a 3mm EP your eye will be almost glued to the lens.
I use a 4x Powermate with a 12.5mm Orthoscopic to give the equivalent of a 3mm EP but with good eye relief .

If your a spectacle wearer than you might have to look at one of the Lanthium or Andrews ED 20mm eye relief style eyepieces . While they are a good EP some of these designs tend to be softer in the image omn planets .

I have used many different design EP for the planets but still keep going back for the Orthoscopics.
There not good for DS stuff as the field of view is only 40-45degs but you don't buy them for that purpose.

I have some of the EPs you mention and while they are good all round EP's and work well with a barlow , I still use my Orthos for planets .
Just my opinion.
Mark