rayleigh vs blackbeard

Blackbeard vs Old Rayleigh who wins? Imo Rayleigh still has his haki at it's highest, after TS I think he have a better stamina since he trained Luffy. The yami yami no mi is useless on Rayleigh, Rayleigh was fast enough to keep up with Kizaru and overspeed G4 Luffy. Rayleigh. Blackbeard. oppo reno 7 vs reno 8