It wouldn't be fair for me to just list 5 so I'll put it in better perspective by showing the whole 10.

Because this isn't a league table I went as follows:

1. Pacquiao - Blitzed all the weightclasses. Level of competetion has been outstanding.
2. Hopkins - Skills that redefine longevity. Has shown time & again, how the real pro's get it done.
3. Marquez - Weightclass friendly, fight fan friendly. Longevity. Mixed with the best and held his own.
4. W. Klitschko - Long time domination, consistent level of outstanding skill for a man his size.
5. Martinez - Becoming weight friendly, on a run. Good skills. Good resume.
6. Froch - Excellent level of competition.
9. Ward - Skills that last. Good athlete. Son of God.
8. Dawson - Amazing skills, mixed with good company.
9. Donaire - Sublime skills. Resume took a turn for the better, needs bigger opponents.
10. Amir Khan - Great athlete. Resume becoming deep. Almost there.