Dave makes so many mistakes though!!! I never notice them as I'm not a keyboard player but the keyboard player in my band said that the little solo section he did at Ibrox in 2003 was absolutley riddled with fluff-ups!

Tico is always solid - nothing overly demanding during shows really

Jon's voice nowadays can let him down from gig to gig

Richie always seems solid enough although some of his improv work can be a bit loose and repetitive

Hugh is always spot on and NEVER ever makes a boo-boo! For me HUGH is the rock and most reliable member of the band (and he's even started to loosen up and actually move on stage lately!)