Actually now as I’ve read carefully what you’ve written.
For me personally the best BGE programmer or at least with most contribution to BGE is lordloki76
I want to be modest but I’m pretty good. However I barely make any finished games other than those for BGMC but I started making a nice looking game last year:
the question to the title is very easy and a lot of ppl will agree @haidme power!!!
i mean he is the one who actually create real games and publish them! (on steam!)