Favourite Psyker Build?

With the new balance changes, psyker has so much more build potential. I've seen havoc viable smite, voidblast (aoe staff), and still the inferno staff builds. All are great builds with loads of damage and utility potential.

What is your favourite new build for psyker and why do you like it?

On the other hand, why do you hate that new popular psyker build you see around, and for what reason can you not stand it?