Barnes, TJ, PA, Mika, Robert Smith, maybe Mike Wolfe are the next generation of "greats". I think they'll be the ones winning most often in the next 10 years, the way guys like Duke, WRW, Voss, Bohn, and PDW have been for the last 10+ years.
Current greats are pretty much those listed, WRW, Duke, Voss, Couch, Lawrence, PB3, PDW. I think Monacelli is getting past his prime. He was a great, very dominant for a lot of the 90s, but I think he's moving into the twilight of his career. Still, I root for him every week, and I love watching him bowl.
SH