I'm surprised someone with your knowledge of EDI - going by your input here - has to ask?
Given the BA B763 has only been back on since BMI were bought out and it's one or two flights a day is that a genuine question given I clearly don't live in Edinburgh? I have however been a frequent visitor and user for....ooooh 22 years. I find pprune is useful place to learn, I hope my question did not upset you too much.
Main apron stands that can accommodate a B763 (without winglets) are 2, 4 and 10. Stand 9 is B752 sized (without winglets
AFAIK).
Given 2 and 4 are international stands nowadays, sounds like Stand 10 (or Gate 11, why EDI why???), given it's proximity to the BA lounge.
Thanks!