If they ever drank together while trying to one-up each other, I imagine the results will be either tragic, hilarious, or both. It'll be great times, for sure.
As for in-depth discussions on religion, it sounds fantastic to me! You can ask her about the Qun and the Dwarves too, she's been almost everywhere. Dee is all about spreading knowledge so long as they don't delve too deeply into Chantry secrets.