I like most of the standard map types but usually with low sea level to minimise the chance of isolation.
I do not even know anymore; I did not realize I was playing 3.13 for the longest time, and now that i have updated, there seem to be a lot more map choices than there used to be.
I used to love the Earth 18 map, but i have played it too much now (and the romans can kill everyone without any effort at all. Still my earliest victory, in the 600s, domination. Got machinery, and even gunpowder, but never used anything but praets and warriors, warriors being spammable by any european power, and can even be used as either the mongols or chinese to wipe out the other).
I played a couple of archipelago games, but they just seem to be slow and easy. I should mention I won one of these even when I failed to get the great lighthouse or the colossus, and started without any strategic resources, and had to mass-archer my closest rival to death before he got ironworking, and it was my first game in a new difficutly (prince). Killed him around 1500 BC, and immediately had the largest empire in the world, even though I felt like I had little at the time (had not found anyone else, so had nothing to compare to). I never felt like I was going to lose from being taken over at any time, because my enemies never brought their navies to bear against me.
So I am playing random continents at the moment.Loved my last map spawn, until I realized that, thanks to raging barbs, I had a major advantage; mine was the only continent with less than 25% snow or tundra (and probably only about 2%, really), which means unending barb spawns for my enemies. It was my first game on monarch, but I do not even think it really counted. I wrote a thread about it; I finished off the civs on my continent, but there was only one of 3 still alive, and I have only killed two civs overall; the barbs killed 5! I have just finished it with a super slow cultural victory (just sids sushi and a bunch of wonders mixed with cathedrals; I never set the culture bar to even 10% for the entire game, so needless to say my victory was among the latest I have ever done; late 1800s)