You're saying the input method sucks, I'm saying I prefer it because I find the charge inputs more reliable than command.
Also I bolded a lot of your post pointing out how you're admitting this is subjective to yourself. This isn't some objective fact that one method is better than the other, you're outright stating that it's your opinion.
As for charge chars in championships, Vega (claw) was pretty great in ST. In the current builds of SFV it's pretty much agreed that Bison's been the best so far.
Again, though, you say there's no positive to charge inputs. I say the inputs are easier and more reliable for myself. You can have your own preference, much like I have mine, but why on earth would you wish to eliminate the preferences of others.
You also state that you can name a million better options than charge inputs. Lets hear a few and tell me why they'd be better for someone like me, who likes the physical motion better.