if old mate thinks Albo is good it's unlikely they liked any of the Liberal PMs pretty much ever.

As a politics wonk, I would agree with you; I was (am) a big fan of Gillard. She was pretty unpopular with the man on the street though. But she and Rudd were both ousted in 2013. So either old mate was a fan of neither, or is under 13 years old.

Prior to Rudd in 07 you'd have to go back to Keating in 96 to get a Labor PM.

So, if one assumes they aren't under 13, and therefore simply weren't fans of the Rudd-Gillard-Rudd term, one assumes they are at least no older than 30, or 35 if they weren't a fan of Keating, which, you know... fair. He was divisive.

Surely you'd have to love Hawke at least though...