I will say this regarding my "strong" economy. It may be stronger than yours, Frank, but it still blows compared to England who's clearly out-teching us. Edit: If we don't militarize, we will lose. The sooner, the better.
I spent a lot of my turns exploring and we got the shaft. France is all grass. That leans me toward Pholk's. Though I haven't opened his save, I did some testing. I created a 20% defense city held by two archers. I had 4 axemen. None of the units were promoted (because world-builder makes it really hard to mass-promo). My first two axes never scratched the archers, but those were just bad rolls, I think. Three and four brought the archers to around 50% health. Next turn, they were all healthy again.
So, if, using Pholk's save, we try an invasion at Rheims, let's get all seven at once and prepare to lose probably four or so. We also need to ship archers stat.
Not a vote for Pholk. Just discussing how we'd play it out if I did.