Pac has thrilled me more than any of the names on this list. His fights against the great Mexican warriors of this era are head and shoulders above anything on the other guys resumes IMO. Gatti is my favorite, but Pac is clearly the best of this bunch.
1. Mayweather. He fought and beat better guys than the other choices. No one hs been constantly good during the 2000's than Mayweather. 2. Hopkins. If Hopkins beat Taylor in their first fight (there probbly would not have been a rematch) and Calzaghe. He'd be a likely choice for #1. He's hurt by having a lot of soft touches mixed in with some great wins. 3. Pacquiao. Great offensive skills but bult his reputation on cherypicking and catchweight championships. 4. Calzaghe his resume in terms is not as impresive as anyone else here, and he dose not compare in terms of skills. Got by Hopkins and Jones bet himself more than he beat Jones. 5. Jones. Jones as arguably the best boxer of the 90's. Along with Pernell Whitaker. Up to his winning a heavyweight championship his resume and skills would possibaly put him at the top of this list.