How would you guys rank Old Garp, Old Gaban, Old Rayleigh, Old Sengoku, and Old Whitebeard?

What's your personal order? For me it's Garp>Gaban>Sengoku>Rayleigh>Whitebeard (I place Whitebeard last because yes markneford was an impressive showing, his sickness really nerfed his haki abilities).