Hands down, my choice would be the D60. I already know it reacts well to the Torpedo Reactive loads, as I've recorded it myself. It's a killer thrash amp, and I use it myself for that. Boosted on the more setting is tight, punchy, clear thrash heaven.
Fireball depends on the model. I have played both, and prefer the 100 to the 60 as it has more mids to cut through the mix. The fireball 60 and powerball both got swallowed up when I heard them live. Could have been user error, but the powerball was mine and I let my guitarist use it, mids were dimed. Didn't hold a candle to the Rev F dual rec my other guitarist was using. For recording, it may be different.
Here is a clip I did with the deliverance and my Chupacabra using my Two Notes Capotor and the cab sims in Amplitube 4
https://soundcloud.com/kyle-bull-760574 ... pacabra-50