I dont see how you put Islam above Jon Jones in the P4P ranking.
Islam has a good streak at LW before capturing the belt but that was mainly against non-elite guys. Then he had two amazing wins, but one of those was a hard fought decision against Volk who is a 145er.
Then you have Jones who was champ at the age of 23, and for the last decade has fought nothing but title contenders and has been racking up wins against guys like:
Bader
Shogun
Rampage
Machida
Gus x2
Rashad
Glover
Vitor
DC x2!!!!!!!!!!!
Then he makes his HW debut against Gane who only had a razor-thin decision loss against Ngannou, and subs him with ease in like one minute.
I just dont see how an objective observer could honestly say “yeah Islam deserves the #1 spot over Jon”