Rusty Edge
Deity
Well, it's been a while since the last time I played Civ3... I remember I liked much better the graphics from Civ3 over those of Civ4, it took me a while to switch because of that. At first I think Civ3PTW was superior to Civ4 Vanilla in different aspects, but they were fixing and adding features with the expansions so Civ4BTS is far superior to Civ3 in almost everything I would say.
Maybe one thing that I don't like so much of Civ4 is the "Suicide Siege", I liked the way Siege worked in Civ3, but maybe the new mechanics are necessary to keep the balance of the gameplay.... although not comepletely sure.
Also I miss some units, buildings and wonders, I don't remember all of them, but it comes to my mind Guerrilla Fighters and Leonardo's Workshop just to say some.
Now that you mention them, I would like to see those elements returned to the series, also.
I liked the way III seige hit random targets. I might destroy population or the very buildings I wanted to capture instead of weakening defenses and troops. The risks of seige. I also like that seige could be captured.
I completely forgot about guerilla fighters. I thought they were an idea that needed refining. Likewise, Leonardo's workship was overpowered . But better to rebalance it than scrap it. If you build it in SP it just counteracts the A.I.'s instant upgrade bonus.
Thanks for your answer!