I don't consider Deuel to be one of the all-time greats. He is super talented, perhaps the greatest American natural talent of the last fifteen years, but a the original posts suggests, he could have been better and more accomplished. Why he didn't achieve a a higer level is hardly the point.
He'll go down as a brilliant player but his title count doesn't put him in the conversation with the most elite. Based on what we saw from him from 1998-2002, he looked like he might well finish his career with a resume of titles easily comparable to a Souquet or a Varner, and possibly on a par with the likes of Sigel, Strickland, or Efren.
Corey has had a fine career and will, deservedly, be remembered as a very accomplished player who fell a bit short of the career we all expected of him. Of course, his career is hardly over, and if he turns the corner and starts snapping off the most prestigious titles, I'll be happy to reassess his career. Then again, unlike Shane, Corey doesn't play the WPA World Champioship events oveseas, and this makes it harder for him to add the biggest titles to his playing resume.