I hate it when people take a potshot at my boys.
But you're not wrong. I guess it really does come down to appeal, individually. I love their complex music, how three guys could do so much and do it live, and yes, even Geddy's vocals.
That being said, I'm a vocalist, and Geddy is not who you want to emulate, other than his consistency. He's a serviceable vocalist, and he can nail it just about the same way every time.
Now, bass, keyboards, and assorted weirdness? He's got that on lock!