I know the Millennium is the most comfortable and the LW likely the quietest. I want one that is comfortable (I do not particularly like the LWs for long sits) but I want one where I can shoot behind the stand and with the back rest on the Millennium M100 and M150 I think the back of the seat would get in the way of shooting behind the tree. I do not need a back rest but do prefer a suspension or net style seat. I want at least 30" platform and would prefer a footrest. I am tall enough and old enough where shorter than that is tough on my knees for a long hunt.
Weight is always important but 15 lbs or less for the stand is fine.
Ease of hanging is a big factor but one being slightly easier to hang than another won't be a deciding point. A stand being a pain to hang would rule it out for this use.
Thanks in advance.
http://www.chippewawedgeloc.com/
The old Gorrilla stands were pretty good....I have 4 of the King Kongs. I believe another company called Hawk bought the rights or patents and I have one of their new ones with the mesh backrest. Not sure if this fits your requirements but FYI anyway.
https://www.hawkhunting.com/collections/hang-on-stands