More specifically I will round it down to four contenders which were fairly established in the late 50's, early 60s
Hawker Hunter
Dassault Mystère
F-86 Sabre
MiG-17
Each has it's advantages and limitations, it's a tough choice, I think I'd go for a Hunter for it's all round capabilities.
Maybe the F-86 for a pure air superiority role
Not sure how the MiG 17 compares to later developed F-86s and the Mystère is something of an unknown really.
Hawker Hunter
Dassault Mystère
F-86 Sabre
MiG-17
Each has it's advantages and limitations, it's a tough choice, I think I'd go for a Hunter for it's all round capabilities.
Maybe the F-86 for a pure air superiority role

Not sure how the MiG 17 compares to later developed F-86s and the Mystère is something of an unknown really.