First off, let me say that I love Civ5. Already logged 100+ hours and still not bored. There are well over 50 "Civ5 / Firaxis / Shafer is worse than Hitler" threads currently on this forum. Kindly ask you post your hate on those threads. This is a constructive thread. Please and thank you. As the title suggests, since AI criticism is a big part of the Civ5 hate threads, what PC game do think had the best AI ever. My choices: (1) GalCiv II - Finally a game with AI that would anticipate your invasion by noticing (duh) your large buildup of forces on their border. Also, there actually were EVIL civs who would behave *gasp* evilly. Diplomacy mattered in this game. If you declared war against everybody all the time, you would die. Picking your battles was important. (2) Homeworld II - Before they defanged the AI to appease those lame people who suck at video games, the pre-patch 1.1 AI was devious and simply awesome. It would bait and retreat, send raiding fleets to your resource extraction efforts while you were away, and send their main battle groups on full scale attacks when they had significantly weakened you. They actually counter-attacked. No joke. (3) Warcraft III - Let's face it, the Insane settings of the AI is a challenge to even the most battle hardened Warcraft III players. Blizzard has always been great at this. (4) X-Com: UFO Defense. For all you old timers out there, this game was awesome for turn based strategy. You actually hated the AI in this game. It hated you too. (5) Perfect Dark (N64- Not PC I know). Not a strategy game, but a game with awesome AI nonetheless. The 'PerfectSims' were tough as nails, and possessed herding and hunting tactics. Personally, I think AI is the most interesting and challenging part of computer programming and I like to give props to game companies that do it right. Lets hear your thoughts folks.