are you kidding choke points and strategy still matter HUGELY with stacks.
example:
two large continents. i had conquered my continent by the time the industrial age rolled and around and china conquered his side in the modern era. we were the last two left and had fully improved our continents.
it became an arms race.
he had a small isthmus on his continent that connected a land mass about 25% of his total continent. I knew that was my entry point. I knew (through espionage) his army size was almost my own in size. So I knew if I attacked him the retribution would be swift and I would be at a disadvantage. The advantage is on the defender and I simply could not economically outpace him.
So I developed a plan. I realized that if I nuked the fuck out of all the cities on the peninsula and nuked away his improvements (railroads) around the isthmus, I would know how long it would take his "stack of doom" to reach the area. I showered him with enough nukes that it would take him about 5-7 turns.
During this time I executed a long-planned attack with marines from transports that took the cities outright all in one turn so as to prevent airlifts and then began moving my "stacks of doom" into place at the choke points.
The isthmus was two squares wide, so I had to stack two armies there that would be able to withstand his attack once it arrived. I got ready and waiting in anticipation.
(Of course all this while a world war raged - at sea we clashed and self-exterminated our respective navies, flying bombing sorties against each other and maintaining fighters on air superiority missions. And of course his nuclear arsenal got about 50% used against me, thank god for strategic missile defense, which blocked the lion's share. But much time was spent attempting to prevent his several attempts at land invasion counter-attacks on my continent, which I did successfully thanks to a larger navy, with better pre-war placement. But that's another story.)
So finally his giant army of modern armors and infantry came into view, and i began barraging it with what was available to me - artillery, cruise missiles, battleships, and bombers in hopes to weaken it - any thing to hold out and defend my new conquests long enough to annex them.
And after a prolonged battle sequence, I came out ahead, but only just. On the next turn, seemingly acknowledging his major defeat, Mao agreed to a peace treaty. I had conquered part of his continent. I now had a beach head, and it was only a matter of time.
Was it at times tiresome to build so massive an army and nuclear arsenal, and more so to rebuild it twice after the three successive wars I had with Mao to finally conquer him? Yes, it was, at times. But don;t think for a moment that I did not strategize endlessly and did not enjoy to no end the, what seems to me in the context of the game world, ultra-realistic preparations for war as much as the actual massive epic battle.
So hate on stacks all day, but without them, that level of scale is lost, and Civilization becomes a children's game.
Sure, more people will like it, their appeal is broadened and they make more money, thus encouraging their dumb-down practices, but that doesn't mean I have to play. I'll stick to the endlessly variable world of Civ III whose games are truly an undertaking. A rewarding undertaking.