I played Civ 1 on the Amiga and Civ 2, 3, 4 and 5 on PC. There are other games I play more but I've put in hundreds of hours on each iteration (except 5... yet). Personally, I like Civ 5 but I do find it's weaknesses to be a killer for the game's long term appeal. The biggest problem of course, is the AI. I actually spend most of my gaming time in MMOs (Eve and, in the past, Planetside). I generally like my games with a healthy dose of multiplayer. Unfortunately, with Civ, multiplayer is just not what I'm after. It's all about the singleplayer game for me and that is totally compromised by the terrible AI. That said, there are many things I like about Civ 5. 1UPT is a great change and long overdue. It's just a shame the AI can't handle it. Hexes! \o/ The method by which cultural borders expand is much better. Ranged units actually having a range is good. I understand that having your archers fire arrows from one end of england to the other on an earth map is not exactly accurate but it undoubtedly makes for more tactical fights & manuvering. (Or it would if the AI wasn't so poor) City states are a nice addition but imo there are numerous details of thier implementation that could be improved. Also, the AI seems to have trouble making effective use of them. I could go on. In short, there is much to like in the latest Civ. Unfortunatley, it is all semi-overshadowed by either the terrible AI or wasted potential. I have no doubt that future patches and expansions will correct the worst of the problems though.