Best PS4 Jailbreak Firmware

Hey everyone,

A friend just gave me their old PS4 which has been collecting dust for quite some time.

After discovering they removed the HDD I slapped in an old laptop drive and booted it up.

To my surprise it's on a low(ish) firmware and ready for jailbreaking.

My question is, what's the best firmware update from v8.5 upwards to use and jailbreak?

I've read a few forums saying that v9.0 is the best but then some say v11.0.

Thoughts?