It is stated in the wiki that Scrooge is in his 60-80's though thats not real, because he has been around since the Klondike Gold Rush, which makes him over 100 years old (assuming the reboot's events happen in 2017 - 2019). In the episode 'The other bin of Scrooge McDuck', Webby also mentions that Scrooge was born in 1867, making him 152 years old. Also, in the episode 'The golden lagoon of white agony plains', it is stated that Scrooge was stuck in the timeless realm of Demogorgana in order to stop a demon uprising, much like Ford was stuck between various dimensions. This means that Scrooge is far older than Ford (who is in his 60's), which gives him the upper hand in terms of experience (since this probably means that Scrooge has fought the most enemies).
Concerning the speed, durability and strength, I believe both Scrooge and Ford are almost equal, though Scrooge might be better, due to his experience.
The argument of Totallynotchewbacca about stomping doesnt make sense, since with the same logic, Bill Cipher should have won in the finale of GF, cause he stomps almost everyone in the GF universe (Tier 2C). He was defeated, because he was tricked, and Scrooge can pretty much try to do the same here (though i doubt it would work, since Ford would be able to find out if someone tries to trick him),
Also, the fight takes place inside the vault, so Scrooge has another advantage, cause he knows the place, while Ford doesnt, and Scrooge has access in all of his equipment.
However, I agree that Ford is more intelligent than Scrooge, and has better understanding of his own equipment, so in terms of weaponry, I believe Ford has the advantage.
All in all, I vote Scrooge, mostly because of his better experience. Ford can still win this, if he tries to use his weapons immediately, but I dont think he would do such a thing, since he wouldnt consider Scrooge dangerous (he doesnt actually know what Scrooge is capable of). Generally speaking, i dont even think they would fight each other, more like talk it out
.