Definitely not a Valeban - more neutral and have actually read a biography on him out of interest. Same for Stoner. I'm a big Stoner fan both as a rider and as an individual. But these riders are multifaceted, especially the more successful, and invariably ruthless ones. The Stoner/Rossi rivalry was hence, darned exciting to witness.
Marc is himself, quite ruthless in his own way. But his sheer talent mixed with an element (the enemy of my enemy is my friend influence) makes it unsurprising that he gets so much slack for his questionable antics. With him, I'm just as neutral as I was with Rossi. I see Biaggi as I saw Lorenzo. Mercurial characters, though quite clean on track.