Some ideas for possible parameters:
Let's pick three distinct civs, with different traits- have no more than two civs with the same trait, and no civs with the same trait as the other civ. For example, you wouldn't play as France and Carthage, and you wouldn't play all industrious civs. This will give us variety and the chance to use different approaches in multiplayer while we wait for the patch.
Any ratio of land/rainfall/rockiness/age works for me. I'd like to play on a standard size map, to cut down on the risk of having two capitals right next to each other, and barbarians at roaming. PTW barbarians are much smarter than vanilla Civ3 'suicide' barbarians.
Regent level seems to be a good standard for MP at this point for most people, especially if we play games with AI opponents as well.
If we're calling civs, I'd like to play at least one game as the Ottomans. Otherwise, I'll take whatever's leftover in the other games- everyone should probably get a first choice of a particular civ in each game, if they like, and then we can all fill in the details.