Two bands that I love, but for me Rush.
BOC have made some great music, but they have interspersed with some real turkeys. Also, when they were 'big', their live performances were disappointing. Fortunately they are a bit better live nowadays.
For me Rush from their inception through to Moving Pictures are simply the finest band that I have known. Signals onwards the direction was a little too different for me,although I can still pick out some good moments, but last year's 'Snakes and Arrows' was reminiscent of past glories. I have never seen a bad live performance from them either.
But, having said all that, I wouldn't have compared these two bands, but then accept that it is difficult to find a comparison for either.