Neil Peart is...
...getting into voice-overs from what I hear. I played golf this weekend with a friend of his from DW. Told me that Neil is playing a character in an animated movie due out this year, but I can remember the name. I will find out.
As for why Neil is considered by so many to be so great is basically that he is the average drummer's first foray into better (great) drumming. To really know truly great players you would have to venture very far from most mainstream music to hear them and not a lot of people are ready to go that route. Rush's music is fairly palatable to most rock listeners and their discography and record of being very inventive is what gives Neil his reputation. He has never played an average beat and he's good at what he does. Does that really make him a great drummer?...yes! Is he over-rated?...yes! He himself would tell you so. The guy realized enough about how his playing was stagnating that he went to Freddy Grubber, for God's sakes. (Freddy's just...weird.) I take my hat off to him for that.
He has his weaknesses, and until you DO venture into the realm of really great players you don't hear them. I myself considered Neil to be the greatest drummer of all time...until I knew better. Now I can hear every error in his playing...and I still LOVE his playing.
I give him all the accolades he deserves! He has added richly to the art of drumming and taken it places it has never been before. We owe Neil a great deal of gratitude, same with many others. I consider him to dwell among the very best.
Anyone who considers him the best in the world really needs an education, though.