In my humble opinion, Capcom makes the best Fighting Games. I would love to see them make a fighting game with the Deep Down engine. And Marvel v Capcom 4!!!
In my more truthful, clearly superior opinion as a fighting game connoisseur, Namco makes the best fighting games.
Capcom fighting games are fun but their business models are also very distressing and the balance is off. I don't want to see 8 version of SFIV. I want to see SFV. SFXTK was just the epitome of terrible business strategy and a disgusting DLC model. MvC3 was complete ineptness with how they handled the contract with Marvel and that game is now dying due to lack of patch and people exploiting it online left and right playing as freakin Galactus.
So yeah, they make fun fighting games with deep gameplay systems but suck at providing extra content, balancing, DLC, and business strategy.