Need help making a decision...

Ok, need some help here - I'm sick of not going to see the big name acts that do make it Down Under because I don't like the ticket prices, and I'm damn well going to go to at least one of these. The problem is, I don't know which one. So I'm hoping some of you who have seen these acts live can give me some contructive advice on which one you think is likely to be the better show, given how fucking expensive the tickets are (btw - the ticket prices I'm listing are the cheapest tickets available.)
My choices are:
4th-8th October - John Farnham - $99
18th October - Def Leppard, Heart and the Choirboys - $119
19th October - Meat Loaf - $97.70
30th October - Steely Dan and Steve Winwood - $135
23rd November - Stevie Nicks, with Dave Stewart and Brian McFadden as guest artists - $135
I've seen John Farnham before, and he puts on a damn fine show, but I've never seen any of the others perform live, and they've all done stuff I love. I'm really torn here.
So, thoughts, suggestions? And yes, I know the ticket prices are criminal, but it's what we've got to put up with in Australia to cover the cost of getting international acts to tour here.
My choices are:
4th-8th October - John Farnham - $99
18th October - Def Leppard, Heart and the Choirboys - $119
19th October - Meat Loaf - $97.70
30th October - Steely Dan and Steve Winwood - $135
23rd November - Stevie Nicks, with Dave Stewart and Brian McFadden as guest artists - $135
I've seen John Farnham before, and he puts on a damn fine show, but I've never seen any of the others perform live, and they've all done stuff I love. I'm really torn here.
So, thoughts, suggestions? And yes, I know the ticket prices are criminal, but it's what we've got to put up with in Australia to cover the cost of getting international acts to tour here.