After having played several HoF games, I've sort of gotten the feeling that if you play focused for one type of victory condition you miss a lot of aspects of the game... even at upper levels. Or at least strategicially you might. For a conquest or domination game, you probably don't need a whole lot of libraries or universities, and you don't need to emphasize research all too much yourself. Banks and stock exchanges have minimal use in a space race or diplomatic game where you can just sell tech for gpt. Military has its use in a space, diplomatic, and 20k game, but at best it yields you more territory for more science or some nice MGLs... at upper levels you want trading partners here to the end (and good relations), so you don't really want to take on the big dog and have a full blown out war. Histographic games don't require or really want all too much culture.
So, here's my variant, which I think covers a slew of the aspects of the game. It should work best at upper levels... probably where the AIs start getting a free settler. You play against maximum opponents on a pangea (maybe continents... definitely not archipelago) map. Your victory condition comes as the 100k. You may whip in the expansion phase so that you don't lose border towns to flips, but beyond that, you may NOT use a government which allows for whipping.
So, here's my variant, which I think covers a slew of the aspects of the game. It should work best at upper levels... probably where the AIs start getting a free settler. You play against maximum opponents on a pangea (maybe continents... definitely not archipelago) map. Your victory condition comes as the 100k. You may whip in the expansion phase so that you don't lose border towns to flips, but beyond that, you may NOT use a government which allows for whipping.