Well, in my experience as a promoter, and playing with people too...
Paul Mac is always a consumate professional, always always performs to a high standard, and a nice guy to boot.
Jerome Hill also always always performs to a high standard, gets on with it, doesn`t make a fuss and is a good laugh too.
Emerson of Killaz FM etc is a real lovely guy, and again approachable, very professional.
Preach is a nice guy, very good performer, although I have no idea what his fees are like now.
James Ruskin is also totally approachable, and always works it.
Jeff Amadeus destroys every joint he plays at, and is a lovely lovely guy, so damn nice I want to kill him ;)
Dean Rodell is again professional, very good live, and good fun to be around.
I always enjoy roland the bastards company too, he`s a maniac, but a lovely guy, smashed the joint too if they are ready for the hard biz.
Of course Mr EG, we all know, performs like he`s been tasered and loves it, works under all conditions and always has time for the punter.
DJ Boss is cool also, very big at the moment in europe too.
Skoog was great with my dealings with him. Lovely bloke, obviously a pro on the decks, totally human, and a party animal in a good way.
Seb Marx is a lovely guy, very humble, seriously dangerous live pa also.
My buddy pal Paul Cortex is sound as a pound, fiercely good live Acid Techno (emphasis on the acid) very humble and works professionally under any circumstances. Serious party animal too.
that`ll do for now, personally I`ve found most people I`ve worked with as a whole to be sound, techno seems to mostly consist of very passionate people, who sacrifice a lot for their music, so they tend to be genuine, in my books.
The strong passion brings strong opinions, but it`s all born out of love, and keeps things dynamic.
the only problem people I`ve really dealt with, for the most part, tend to be the Divas at the top, or near the top of the tree, who have taken on the "I am the party and you all owe me everything just for allowing you to be in my presence" game into their life. I won`t name names as most people seem to know who these people are anyway.