David Haye, Lennox Lewis, Lloyd Honeyghan, Nigel Benn, Barry McGuigan and Thomas Hearns spring to mind.

Two prospects that are going places and I thought that as soon as I saw them are:-

Andy Lee

[youtube=425,350]E2bPJQcDyu0[/youtube]

and

Paul Appleby

[youtube=425,350]MrgZdmabOzE[/youtube]