Michael Turner was a prince of a guy too. I had a chance to chat with him at the hight of his Superman and Batman run. Honestly, we chatted for a good 20-30 minutes because the lights in the convention center went out because of a lightening strike. He was suppose to be leaving for a signing but the call we we're in was lit and the hallways weren't lol. I actually felt sucker punched when I heard the news of his passing.
As for who came first, Turner was definetly after Campbell. Campbell was the FIRST and I think only winner of the Homage Studios (Jim Lees and Portacios Studio) talent search back when Image first started (I thnk he was 17 or 18 years old), and Turner was hired some time later to be a background artist for Marc Silvestri before Marc gave him WitchBlade.