That was Shawlong. Shawlong was later revealed to be a pretentious dickhead with no clue what he was talking about. The kid's canonically at 80-90% of his maximum potential in all areas.
For contract, Gin, his rival for the "gifted youth" title, is stronger, only 80% maxed, and has far more experience.
Ichigo blows them both out of the water of course, but he's the protagonist and gets his ass kicked constantly anyway.