I know there's that old Council Room website with openings, but there's no Dark Ages, there will be no Adventurers, no Guilds, and soon, no Empires. Mountebank/Chapel is a fantastic opening, but I would think Urchin/Urchin gives it a run for it's money for best opening. I guess since there's no real way to gauge statistics to my knowledge at the moment, we can speculate.