But that's not the point for everyone. 95% of Power Metal does very little for me (and I suspect a fair number of other ProgMetal fans). Period. What that means is that even if I do "enjoy" a Power Metal band's set (translation: I don't get bored and decide to go CD shop), I'm not going to be head-banging, etc. It's just not my thing. I like Evergrey, but I don't headbang or mosh (which is something I completely don't understand).
Change your wording to "biggest OBVIOUS crowd reaction" and I'll agree more with your list, but if you're trying to gauge MY reaction to a band, don't measure it by "crowd reaction" (ie. how badly I need to see a chiropractor due to head-banging), but by how close my jaw has dropped to the floor by the end of their set.
I think that's one of the basic, core differences in Prog- and Power-metal bands at concerts... The Power fans want to head-bang, while the Prog fans want to *WATCH* the show -- the WHOLE show -- which I would think is damn near impossible while head-banging.
Also, I've never tried it, but I'd say it'd be really hard to head-bang to a song in 9/8, etc, and I think you'd definitely hurt yourself if you tried....
I guess my point is that with progmetal bands (or fans), gauging crowd reaction to a band based on head-banging, etc just simply does not work.
BTW, the only bands on your list that I actually enjoyed were Evergrey and (to a lesser degree), Tad Morose. Edguy was fun, but I'm not a huge fan (incredibly cool guys, though).
Brainstorm and Angel Dust bored me to tears....I gave them each 2-3 songs, then went to browse the vendors. I wouldn't be surprised if you did the same during several of my top ProgPower bands: Pain of Salvation, Vanden Plas, Dreamscape, ARK, Kamelot, Zero Hour, Redemption, Superior...
But hey, as long as everyone gets something they like, right?