3d printer control boards

So i have a mks robin lite v1.1 installed in my printer. I havent burnt it out yet, though im still in the process of maxing out its capabilities.

My question here is what control boards have you upgraded to or do you prefer and why.

I like the option to install stepper drivers over intigrated drivers. Do you find there is much of an advantage of one over the other?

What about the cpu chip, Other than 32 bit is the norm now, do different speeds make that much of a difference?