Others have their own ideas, too true.... I don't think I've seen too many agreements on this matter!
Remember the RS Pedal thread??!
One would best aim for an amp that achieves even a vaguely vintage sound - I can't really stand most Peavey equipment, but their Classic 30 has a very creamy tone that suits the RS when all the pickups are on and in phase. Solo tones sound ok.
A lot of people I've ran into *hate* the Laney Tube Fusion amp, and to be honest the clean channel isn't so good and they don't have that many available sounds.
However, I've found that at very high gain (and big big volume, haha) the Laney can sound quite authentic when you're doing solos such as Bohemian Rhapsody, whatever.
From personal experience, one of the better sounds I heard when using the Red Special came from a Laney VC-15. So if you can't get a full blow AC-30, go for that. It's a great sound ; the amp is somewhat smaller, maybe not appropriate for a live situation, but its great for recording.