I really enjoy rainbow control, and a good build can win about half the time. I always seem to have bad luck bottomdecking supernovas, so I've never gone that route for FGs. (I tried a speedbow for an ai3 farmer once and after losing due to no supernovas/discarding for the first 6 turns or so multiple times I gave up :p)
This is the deck I currently use. It probably isn't 100% optimal because I include SoSes and Mindgates to make things more fun, but they're still good cards, and the deck does well against most FGs. The notable failure is Eternal Phoenix, with a win rate of like 1%, but all other gods being at least doable, from 10-20% (DG, rainbow) to 90%+ (neptune, decay), and averaging somewhere around low 50%s. If you don't have the purple nymphs, antimatters or pandemoniums (both upped) are good substitutes, and are what I used before getting the nymphs.
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4th 500 500 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6qq 6s1 6s1 71b 749 749 74b 74b 77f 77f 77i 77i 77i 7gp 7gp 7h2 7h2 7k6 7k6 7k6 7k6 7n3 7n3 7q5 7q5 7q5 7q5 7q5 7q5 80a 80a 80h 80h 80j 80j 8psBlanks are SoSes. (2 upped 1 unupped) The bone wall was thrown in as an experiment after the SoG nerf, when I changed the deck up a bit. It used to have 6 SoGs, and I took them out for +2 sancs, the mindgates, the SoSes and the bone wall. I think I also removed another card or two at the same time as the SoGs, since that adds up to 8 cards, but I forget what. The deck is quite quanta starved to start, and might benefit from a couple more towers in place of a Sose/bonewall or some such, but whatever; it's at least a good start, and the nice thing with rainbow control is you can customize it quite a bit to suit your own tastes/card collection.
