I voted P8. Over the years I have owned a P3, P25, P6, RP8, RP10 and now P8. Of those my favourites have been the P25, RP8 and P8.
The P25 was a cracker of a turntable - rather small sounding but very tight and rhythmic, and looked great. I do regret selling that one.
For a while I owned both the RP8 and RP10 and much preferred the RP8, since I really don't like the sound of the ceramic platter. To my ears it sounds a little cold, brittle and bright. When I decided to pick up a new Rega as my second turntable (the first is a Kuzma Stabi Ref/4Point), I chose the P8 for that reason, and it sounds fantastic, the best sounding Rega I have owned. It is also much better than the top spec LP12 I owned a few years ago. At some point I may put the RB3000 arm on the P8 to produce (IMO) the best sound possible to attain from a Rega.