I'm one of those people that thought Civ IV was half a great game. Great roleplaying, fun making strategies, solid builder game, but ugly and combat was horrific. Couldn't believe the combat was still so bad after so many entries in the franchise. Civ V was a breath of fresh air for me. I know 1UPT was controversial but it makes Civ way more enjoyable to me. Hexes are also so much nicer to look at. I realize we all have our own favourites though.