Wow ... still at least two guys I would've thought gone long ago. Very interesting. 
Are they centers? Because I'm the only guy who didn't immediately jump on one.
you are?
Duncan will always be a C/PF to me, never PF/C.
Just the opposite for me but I do like having the flexibility. I believe Timmy is the best PF ever. Here's some history and why I believe he's a PF/C:
Duncan played power forward next to David Robinson for six whole years as a true power forward. He played next to Nazr Mohammed, Radoslav Nesterovic and Francisco Elson–all of whom are true centers–who started next to Duncan for championships in 2005 and 2007. With the exception of the last 2-3years, where the likes of “centers” like Matt Bonner, Antonio McDyess and Dejuan Blair have completed the frontline with TD21, Duncan has always been a true power forward in the lineup