The only game I have played post patch was a King / Continents game I played Kongo. I will state from the start that I switched off Barbarians, this is because since the patch the barbarians turn time has become unbearably slow, in fact I thought my machine was broken at one point, but turning them off fixed it and turn times are pretty rapid in general.
During my game I started next to Gorgo who I expected would be pretty aggressive and would rush me. She didn't and I managed to get 4 cities up to her 2 really easily. I spotted she had a lone settler wandering around so I declared war and took it. However, here is the kicker, I was able to take both her cities with 4 archers and a warrior. I was able to do this because in that entire time she had only built 1 archer.. nothing else. Instead she was putting all her effort into building two culture districts?! Insane.
I wrote that off as an anomaly. Later in the game as I topped the score rankings Spain declared on me. At this point I've got factories in most cities and have gunpowder (can't remember what turn I am on). I get worried as I'm not hugely well prepared for war. Luckily Spain tries an amphibious assault on my coastline with a mix of archers and horsemen.. and one conquistador.
At this point I stopped playing. The same issues I've complained about from the start still seem to be happening. The AI is incapable of upgrading his troops and doesn't have a reasonable estimate of his power level vs mine. This was my major complaint when I first played it and its breaking the game for me right now, its almost a sandbox game.
I realise I only played at King level, but that is still an above average difficulty, and I don't enjoy the buffs the AI gets at higher levels. I just want the AI to play competently.