Groovy Man
I'm Not Like Everybody Else
Paul McCartney bass playing and singing trumps Geddy Lee's bass playing and singing in my book.
don't take it personal if your guy loses lol
As for overall musicianship, I'd give the upper edge to Paul. Paul can play several, if not dozens, of instruments, Paul is, arguably, one of the best songwriters of all time, Paul is the most successful songwriter of all time, one of Paul's concerts sold out in eight minutes in 1993 (fastest in history), Paul wrote the world's most popular song (by airplays), Paul was the first person ever to receive the Polar Music Prize, and a lot more.
Geddy Lee doesn't measure up in terms of influence, or even come close. As a bassist, he might have more technical skill, but technical skill is nothing compared to creativity or talent. Heck, most modern "musicians" can play the guitar "better" than Eric Clapton or Jimi Hendrix (assuming that good playing comes from the complexity of the song alone...) McCartney may not have played the most complicated bass lines, but who would he have to follow? Look at the 50's music before The Beatles came about, and the music after. Do you think there would have even been a Rush if there hadn't been The Beatles, or The Who? Paul's stuff isn't hard, but he played smooth, and his basslines from songs like Rain (he plays those 16th notes before people even knew a bass could make that sound) and I Saw Her Standing there shaped the way for people like Geddy Lee or John Entwistle.