I know all of this, but just by this comparison alone right here, you are talking about being 30 or 50% better, what about Excalibur's 2.5x? So far as I know its a 10~15% rate or so, not exactly sure, you probably know that so you can fill that gap. Now if it has a 10% proc rate it would be the same amount of damage as roughly 15% ODD I would assume, add on that Attack on each hit and WS as well as Excalibur's higher damage and I would assume it wins. As I said, I put the info all into the spreadsheet and Excalibur came out on top easily, all of the numbers were put in from SE's post which gave these examples.
If you could use CDC with Excalibur right now, Excalibur would still be the best weapon, and the gap would be bigger because what we lose from using Excalibur is CDC, KoR does not live up to that WS, so if they let us use CDC on Excalibur then Excalibur would gain Almace's greatest advantage. After this update, the spreadsheet says its basically going to be the same way, unless there are some new hidden stats, that seems unlikely to change. I just woke up so I hope this is getting across well.