what is the best super speaker and why?

I have heard all, and even owned some of the speakers you mentioned and none of them actually do it for me. All the speakers you mention seem to do some things very well, but miss in key areas. I have always been a big fan of Wilson and SoundLab, never liked the JM Labs, or Genesis, but now, I have been spoiled.

The two speakers which blow me away are the Rockport Antares at $37,500 and the Kharma Exquisite 1d's at $70,000. Both speakers sound so close to live music in all areas that everything else I listen to, sounds like hi-fi. The goosebump factor is a constant when I listen to them.

I am driving 3 hours tomorrow to go to a friend's house to hear his system again which includes his 1d's. It is so enjoyable that I make the huge sacrifice to sit in a car for that long. Those who know me, know 45 minutes in a car is my level of maximum tolerance. :)

I've only seen these on the Kharma website, but for $1M USD, they better be good. Has anyone heard these?

Legacy Whispers - no one - no way beats the midrange of these speakers or the balance of the entire presentation they give you in any room.

Not to poke at a hornet's nest, but I couldn't ever answer that question without knowing the room size and accoustic environment and the type of music being listened to. You can ask preferences under certain conditions but to ask for the best (absolute) requires criteria since there is no best under all conditions. Even at $100K a speaker designer makes tradeoffs which might or might not be to your liking.
Maybe I'm just a grump because I have not listened to any of the speakers mentioned.

kirk930: IMO, none on your list are as sonically satisfying as the avalon eidolons, which are under $21k (standard finishes-msrp). the most overpriced speakers in your group are the jm labs utopias. i have it on very good authority that the utopias were priced at the $30k level to attract a demographically-identified group of audio snobs who felt it necessary to raise the highend speaker entry bar to that level; according to my authorities, jm labs would still make a substantial profit were the utopias sold for $15k. FWIW, i have listened to all the speakers on your list. -cfb