I can't promise that it won't be because I often forget I've made a particular argument and sometimes say something contrary to a position I've previously taken because I'm looking at it from a different angle. But I can't see how I could apply this selectively. It seems pretty clear.
Comparable at the very most. Again, I'm more impressed with Kit being one of the best of an order in it's prime. Kit's placing is just as demanding, if not more. Being rooted out as better than a battle master, who is not only a master of all forms, but is also considered one of the best the order ever had to offer. Being better than one of the best in history, puts much more emphasis on Fisto's status.
As for Fisto's force feats, well I've already listed them. Most likely this will come down to who is better in sabers since neither will be ragdolling or controlling the other with the force. Though force pushes come in handy in duel, which I would give the Fisto the edge there as well, considering his force pushes on heavy objects underwater, which requires more force than on air.
What wouldn't Kit have? Strength? Speed? What? His blitzing of elite magnaguards gives us a glimps of Fisto's speed, along with the fact that even Kenobi was startled with Kit's speed, and Kenobi has seen the likes of Maul fight. I don't see an issue there. Not to mention his overwhelming of Grievous can be looked at as not only a speed feat, but a strength feat as well, seeing as Fisto didn't have a problem with Grievous in any area. Too much emphasis on lightsaber forms is overrated. Fisto wouldn't be one of the greatest saber masters of his era if he were restricted to only what his preferred form calls for. Moreover, Kit's form, while called one of the most simple forms, is very demanding in what it calls for, TBH. To fight Grievous would call for exceptional reaction speed. To overwhelm Grievous and force him on the defensive, would call for exceptional striking speed and/or strength. Fisto did both. Then, as I said, there's Fisto's feat of matching the shark General (who, again, can propel himself with enough force to bust through a large underwater tunnel) in strength, and fought him off. Skill wise, well, there's the fact that he adapted to Grievous' fighting style, when Grievous himself can adapt to forms in just a few exchanges.
Really, his performance against Grievous says a lot. The opponents who struggled with Grievous, says a lot about Grievous, which in turn says even more about Fisto.
__________________ "The power of the dark side is an illness no true Sith would wish to be cured of" -Darth Plagueis