Fastpass+ Queue Line Question

[TexasLu]

Which rides have a queue line experience that I may be missing if I use a fastpass? For example, Tower of Terror - are there things in the standby line that you wouldn't see if you went through the fastpass line?

Thanks,
Lu

 

[smidgy]

the haunted mansion is one I would think of . although I would only bother expereincing it once.