I think Tua and Peter prime for prime would have made a terrific and brutal fight. I honestly could not pick the winner with much confidence.

I feel Peter was the better boxer and had a weight advantage but Tua had such good chin and stamina/output as evidenced by his fight with Ibeabuchi.

Both warriors would have made excellent competition for prime Tyson. Whilst Tyson had the edge on them in defence, speed and skillset, Tua and Peter were much heftier and durable imo.