I have always preferred the canon design of the Ambassador-Class.
Now, which "canon design" would that be?
Locating some TNG screencaps for TNG discussions I hadn't thought that there would be that many conference lounge screencaps with Andrew Probert's golden Enterprise-C
clearly visible behind the actors.
So I'd dare to say that Probert's Enterprise-C
got much more screentime during TNG than the VFX model presented in "Yesterday's Enterprise".