Best olaf build ever?

Hi, so ive been playing a lot of olaf since his buff in the recent patch. I played a game got 25-5. late game i managed to 1v2 under both nexus towers taking lazers for a good 10 seconds. I nearly died but killed them both, the enemy team would not stop raging at how broken it was and how OP olaf is.

I had a build that was perfect in my opinion for the situation.

Nija tabi > BOTRK > Black Cleaver > Spirit visage > Cinderhulk > Thornmail.

It should be different depending on the enemy obviously, but the core idea, of BOTRK with Cinderhulk, spirit visage and black cleaver, gives unreal scaling....

Spirit visage gives the 20% more lifesteal effects, cinderhulk scalings for HP and the BOTRK for the attack speed to proc abilitys aswell as enough lifesteal to heal so much with your w, on top of that the cleaver scales with cinderhulk, and gives you armor shred and move speed to chase enemys... max cdr nearly aswell with this build...

what are your thoughts?