Enzo Maccarinelli has some serious power
When he lands clean he is devastating.
If you look at his record it is his first 13 fights that stop his ko percentage looking as good as it could. In his first 13 bouts, four guys survived. Since then only Abdoul, Hobson and Braithwaite have survived. But if you look closer Braithwaite was dropped and hurt, as was Hobson. Hobson was rematched and sparked. Abdoul appears to have survived pretty much everybody.
In Enzo and Haye I think we have two sensational punchers. Both had to lose and get some serious experience for them to become what they are today.