... I haven't done a Schenker discog, but not incliding the acoustic Thank You albums, Midst is in the Bottom 5 easy.
I didn' make any ranking of Michael Schenker solo discography, but, besides the first four plus Adventures of Imagination, that to me are clearly above all the rest, my ranking would be more or less separated in these groups of albums:
1) The first 4 + Adventures;
2) Written in the Sand/The Unforgiven/
In The Midst Of Beauty(yeah, it's here!
)/Bridge The Gap/Spirit On A Mission
3) Ressurection/Revelation
Above are the albums that I truly like as a whole.
4) Be Aware Of Scorpions/Dreams and Expressions/Arachnophobiac/Tales Of Rock 'n' Roll/Temple Of Rock. All those albums have something really good and interesting to offer, but I have trouble to fully appreciate them. About Dreams... and Tales... I agree with the similarity that TAC pointed out in the way the albums are structured. Although both have a lot of great riffs, they seem to me that they wanted to sound like one long song, but, in the end, they sound like many short songs that ends abruptly and are very similar with one another. And, in the Tales's case, the variety of singers makes it a bit confusing ou unsettling to hear (differently on Michael Schenker Fest albums).
5) McAuley Schenker albums. I think those are the albums that I don't like (the first) or care (the other two). But, even those albums have many songs that I truly like.