I'll say one thing, and I am most likely in the minority. I have not really liked the way Civ IV went with its desire to offer all the over sized graphics stuff, such as the battle scenes. I much prefered the Civ III approach. Keep things small, and not eat up a good deal of memory capability.
Another thing I thought was childish was the ships moving around, and turning corners like some race car, and then suddenly halting with themselves listing over to a side. It was just childish IMO.
I pretty much stuck with Civ III because I could do more with the Civ Edit than I could do with Civ IV. As the game progressed, the more information accumulated, the more it bogged down the computer. In other words, I think the game would be better if all that 'cutsie' graphics stuff was just eliminated, or we were given the opportunity to turn it off.
I can only hope the Civ IV crew decide to stick with great basics, and only add the Cutsie stuff if it is great, or give us the ability to watch it once, and not have to see it again. The more that stuff clutters up things, the more resources it hogs.
I'll get off my soap box and go back to my Civ III again. Incidentally, I still have my original, buggy, copy, and my Civilization Complete, which I rarely use. The fancy stuff will only impress for just so long before becoming old hat.
Also, I can only hope we are give more ability to modify things, as I am more into the exploration part, than to the 'head banging' stuff. But that's just my way of going about things, I guess.