1 UPT is easy to manage your units and excludes units cluttering. True. But don't tell me it is better. It's different, but it has as much downfalls just like the old stacking 100+ units a tile.
Both are wrong. The thing is you cannot implement "tactical & strategical" fightting onto the main 3D map. It is simply impossible to do both, without hurting one of them. In this 1 UPT case, tactical is seriously wrecked.
-Sure you can block a road with militairy, as someone pointed out.
*is that "realistic" ?
*Look at the scale of things, people!
*A hex represents hundreds of miles, right !?
*Do you think there is only ONE road ?
And that is just one example.
The best way to tackle this, is already done; the Total War series.
In my book, the best CIV expands and explores like it is now, but when it comes to unit managment and city managment, they should implement some good things from TW.
-City development > a new 3D landscape, where you can walk through your beloved city and enjoy the wonders and improvements you builded there. Watch people wlaking around, maybe even talk with them (ala Caesar 1,2,3) and hear about their concerns or other things that are on there mind; like they want more luxury or protection. Work ? Whatever, you name it. You get the idea...
-Militairy action > Just like TW, give a option to auto battle or manual, with, just like TW; a complete, real-time battlefield. And, if friendly forces are in the neighbourhood; re-inforcements at some point.
Much, much, more realistic. Much more involvement and atmosphere, if implemented right; you could really get "sucked into it".
And, thanks to the "TW-like" army merging, growing, splitting" feature; solves all of the stacking issue's and 1 UPT issue at the same time.
That's exactly what i like about TW. Not that it is perfect, but on this they have the best solution from anything i have seen over the years.
Maybe it all comes together with CIV 6. Who knows. Meanwhile, i am still running my firt, huge, marathon "prince" game and sofar i am not really enjoying it. Too many "little" annoying things that ruins my pleasure, i won't list them here; most have said already, by one and the other.
ps: just another thing that crossed my mind: Why does CIV involves so much "unit" managment ? Since you are ruling a "empire" , why not approach units more like armies ?
Instead of "build archer, warrior, horse, whatever....go for a Army route: build a defensive "Army" , Mixed Army, Offensive Army, etc.etc.
That alone would also fix alot of the units horror on the map and at the same time is much more realistic. You engage wars with "armies", not a few silly warriors, right ?
So build the militairy up around Armies, instead of single units. Fleets, instead of a silly single cruiser, sub whatever. It doesn't fit the CIV map, single unit approach.
What do you think ?