Funny you should bring up GotP versus fire, that's one of the things I talked to Spike about, back before I was known to be on team time.
GotP is time's best anti-fire, with anubis as a second place.
However, I'm more worried about light stalling hard than fire. Ryan left (I guessed he would, so I moved them up), meaning they have a more experienced general now (coinich > Ryan, IMO). Plus, they have hrm, they'll be bringing strong decks. I suspect a lot of stall power from them, a whole lot of sir-lance-a-lot decks, with tons of healing. That's why I think GotP would be better against them. It forces them to take damage or discard the miracle they're saving for, and stops them from drawing. Plus, if we steal away all their sanctuary, we get heals, not them, and we sap quanta.
Quick question: When is deck-testing planned for? I dun' wanna miss it, but I'll be gone from roughly an-hour-from-now until Saturday evening (me-time), and even then I'll be doing catchup.