In all honestly, from all the different BIOSes i've tried (betas, modded, officials), i've found very little difference.

I personally am still on 1805, as it works just fine for me & i haven't felt the need to update.

Could be partially because i have the P5Q Deluxe, whereas Asus cripples the lower end boards (this being where Ket's modded BIOSes become especially useful).