I'm trying to figure out which riff I intend to play first on the SG. I imagine I'd probably start with something smoother in terms of overdrive and work my way up...
 
Highway to Hell would certainly be an intuitive choice. Hell's Bells isn't an unlikely choice. Heck, maybe even Back in Black. 
 
Then Sabbath obviously...
 
 
Don't know why these days I'm always messing with the Electric Funeral riff.
Then pretty much the entire Paranoid album, in fact.
Know what? Make that the first 5 albums - and a few cuts on Sabotage.
 
Well, almost the entire album, actually. 
 
Did I mention I couldn't wait? - For each post Bapu makes in a day, I'm checking the FedEx Tracking site - which is, of course, absolutely useless, and pretty unfunny.

I vote for Black Sabbath - A National Acrobat. My SG loves that song!

I've been into a Sabbath phase recently.
 
Probably helps that I've started re-buying their albums on CD when we drop by at Wal Mart to buy kitty litter and such. They have a bunch of them going for $5. I grab one or two every time we go.
 
Considering that I've already bought each of those records once or twice - and still own most of them, only, back in Canada, Sabbath and their record company made enough money out of me already for me not to feel as guilty to buy them at such a low price from WM. 

Rain
I'm trying to figure out which riff I intend to play first on the SG. I imagine I'd probably start with something smoother in terms of overdrive and work my way up...
 
Highway to Hell would certainly be an intuitive choice. Hell's Bells isn't an unlikely choice. Heck, maybe even Back in Black. 
 
Then Sabbath obviously...
 
 
Don't know why these days I'm always messing with the Electric Funeral riff.
Then pretty much the entire Paranoid album, in fact.
Know what? Make that the first 5 albums - and a few cuts on Sabotage.
 
Well, almost the entire album, actually. 
 
Did I mention I couldn't wait? - For each post Bapu makes in a day, I'm checking the FedEx Tracking site - which is, of course, absolutely useless, and pretty unfunny.

Does it have to be in the key of A?

Sabbath don't bother with keys - the just smash the door open... :P

Rain
I imagine I'd probably start with something smoother in terms of overdrive and work my way up...
 

No,no,no.
Go straight to 11.
Then launch into Fairies wear boots. Simple. Classic. Iommi.

That's actually one of my all-time favorite songs to play!

Well, there ya go.
It's been one of my favorites forever.

That's easy - Back in Black 

I vote for the Cult - she sell sanctuary