Anae.
Byu is a different place and would require an adjustment by Anderson---but he has the chops to think bigger and smarter than doctor Anae IMO. I also think he would do betterith the boosters and creating a cohesive organization of discipline and standards that I don't personally believe Anae could do effectively.
I have never been an anae fan in terms of his HC prospects but I do hope he dominates at Virginia bc he's a good guy that coaches his tail off.