In your opinion, which currently undefeated heavyweight will be the last to lose his "0"?

Fury
Povetkin
Helenius
Perez
Wach
Pulev
Ustinov
Wilder
Mitchell
Abdusalamov
Price
Gerber
Glazkov
Jennings
Wawrzyk
Charr
Ortiz

Who will be the FIRST to lose the "0"?