I have the original M100 and the Lone Wolf Alpha II. Also have the M150.
Do you use Lone Wolf climbing sticks or something else?
My thoughts on the stands...
Lone Wolf Alpha II - love the stand, hate the seat cushion. About 5 years ago I upgraded to the Hunt Comfort cushion that was made to fit Lone Wolf hang on stands. It's a great cushion, but it was expensive and I'm not even sure they make it anymore. I would probably consider the XOP Air Raid, which is very similar to the Lone Wolf Alpha II and comes with a real seat cushion. Or, you could get the Lone Wolf Alpha II and also buy their Alpha Tech seat pad for $30. Or, you could suck it up and deal with the thin, hard, uncomfortable cushion that comes with the Lone Wolf Alpha II. Some guys don't seem to mind it. They must stand up during most of their hunts. As far as the stand goes, the construction is fantastic. It's rock solid, quiet, easy to hang and easy to pack. I added the Lone Wolf foot rest to mine, which I highly recommend. If I'm going into new territory with a mobile setup, then I'm most likely taking my Lone Wolf Alpha II and Lone Wolf climbing sticks. Sometimes I use their E-Z Hang hook system. It makes hanging the stand very easy, but you can't use it with the offset bracket, which is kind of a bummer. I also use the Ameristep back rest with this stand. It's super light and easy to pack. It makes a long sit way more comfortable by providing good lower back support and keeping your back off the tree trunk. Also, the adjustable platform on this stand is a great feature.
Millennium M100 - the problem I have with this stand is the seat height. It's several inches lower than most hang on treestands. For example, the Lone Wolf Alpha II seat height is 21". On the Millennium M100 it's only 17". If you're a taller guy, losing that 4" of seat height can be annoying. I'm 6'2" and I don't like sitting that low. As a result, I don't use the stand that much. I also added the Millennium foot rest to my M100. It helps, but the low seat still annoys me. The seat itself is obviously very comfortable on your back and rear end. If it had a 21" seat height so that my legs could stretch out more and an adjustable platform so I could level it on leaning trees, I would love this stand. I modified my M100 per Greg Fleming's YouTube video to make it easier to pack and make it more solid on the tree.
Millennium M150 - the Cadillac of hang on stands. It's got a huge and adjustable platform, the seat height is adjustable from 17" - 20", it's got a built-in foot rest, the seat is supremely comfortable, but it weighs about 20lbs. Not a good mobile hunting solution unless you already have climbing sticks hung in the woods. That's the only way I use it. I will not pack it along with a 10 or 12 lb set of climbing sticks.
I think one of the most important things is having a stand & stick combination that packs well together. If it were me and I wanted a mobile setup that would come in and out with me on every hunt, I'd get the Lone Wolf Alpha II with upgraded seat cushion or the XOP Air Raid, and I'd get climbing sticks to match.