to follow cam_h's motion:
My voting
Well, i had a very quick look this time. Most important factors in IMHO were :
- %landmass (pop is easier to get)
- necessary techs available
- troops to storm through the continent
So i didn't even look further. I did a very complete comparison on the economic side, but cavalente was in a golden age for just one more turn, so it was no very relevent.
For this reasons all my votes went to the monarch players, which IMHO looked better (assuming cam would be able to get liberalism bonus for astronomy, though a bit late = not ideal timing for invasion)
My game
I played in the night, half asleep, then played with a bad headache (those are my excuses

). I did more

moves than i dare remember. Including senseless trades to JC

. So i'm glad we go with another!
My biggest mistakes :
- too low on troops+going out of vassality gave me low promotion troops

- not building the HE (wanted a coastal big production, and ended up forgetting it !)
- not going soon enough for globe theater (nationhood/slavery)
- bribing a lowly civ against a bigger, peaceloving, one (JC vs MM)
- mismanagement of war vs isabella (peace treaty! when i could call for a cease fire and just send a gallion to the island!),
- attacking nappy without the needed troops (so capturing city i cannot hold!)
some tricks i used :
- trading for everything isa had before engaging in a war with her (giving her techs that won't help her out)
- whipping the caravels (all of you did, so nothing to brag)
- trading with mansa musa for the fastest teching possible (giving him an edge in his continent, but who cares?)
- trading for the AI's world maps (i know everything of the other continent!)
- going fo astronomy asap, for the one way big trade routes + ressource trading
- going for engineering fast, for the road movement bonus (reinforcement come 50% faster!)
- building hordes of missionaries for happiness + money
- using the GA to give me tiles to work + fast moves
about playing style,
- i'm one of those mansa style traders : every tech i can trade, i do it! Only exception are those giving you a unique advantage (i won't trade education before i'm 2/3 turns from liberalism for example) .
- I'm also a slaver. Going out of slavery is something i don't like to do (i feel naked)!
- For the rest, i tried to adapt to both our traits (so whipping granary and forges!) and our goal : domination requires war!