Rush has been my fave band since about '82, when I was 12. Can't say I listen to the band too much these days, but it will always be my all-time favourite (tied with another Canadian band, Annihilator).
Neil is one of rock's greatest drummers, no question. However, there are simply too many awesome drummers to single out just one as "the best".
The original drummer, John Rutsey, was ousted when his health became an issue. And besides, he wanted to continue in a more straight-ahead rock style than did Geddy and Alex.
John at a time (he's now dead) was pursuing bodybuilding but I don't think he ever had a desire to become a pro or anything.
It would be interesting to hear what Peart has to say about Rand these days. What his feelings are about her and her philosophies.