6 STEVE COLLINS
Timing is essential, and for that reason, the Irishman, despite having twice beaten both Benn and Eubank, ranks below them.
Collins caught Eubank toward the end, and both his wins over Benn, the result of injury (First fight) and curious surrender (rematch), were less than comprehensive. The back-to-back losses were the last fights of Benn's career.
One other thing: As tough as Collins was, he wasn't the fighter his more celebrated rivals were.
Collins made seven successful defences. Remove the three that came against Eubank and Benn and his challengers (Cornelius Carr, Neville Brown, Craig Cummings) were underwhelming. He did, however, retire with the belt, something neither Eubank nor Benn can claim to have done.

7 SVEN OTTKE
The German never lost a fight (34-0), but don't even suggest comparisons with Rocky Marciano, which would be grotesque and absurd.
So how does a titlist make 21 defences, retire with two belts, and rank only seventh? Lots of reasons. For one, Ottke never defended outside of Germany. That's a lot of home cooking, which partly explains four wins by split or majority decision. For another, there's nothing special about Ottke's list of challengers. There are some quality wins (Byron Mitchell, Charles Brewer, Mads Larsen, Glen Johnson, Silvio Branco) , but nothing that suggests entry into the pound-for-pound listings.
And let's not forget that in December '03, Ottke was given an early Christmas present when he outpointed Robin Reid.

8 FRANKIE LILES
The long lefty makes the list based on longevity; he made seven successful defences and reigned for the better part of five years.
I'd argue that Liles is a bit underrated, partly because his style was often negative and partly because his reign overlapped with higher-profile titlists like Jones and Benn. Moreover, Liles lacked a defining fight. Instead, he was the consistent type, defending mostly against good fighters like his arch-rival Tim Littles.
Liles's best win came in his first defence, against fellow southpaw and two-division titlist Michael Nunn in Ecuador. Nunn had only two losses at the time.
That Liles, who was never the best fighter at his weight, cracks the Top 10 speaks volumes of the relative immaturity of this division. Twenty-three years isn't enough to establish a solid list of exceptional champions.

9 CHONG PAL PARK
The second titlist in this division's history, Park was an oddity, only because there are very few Koreans fighting in the heavier weight classes. (Interestingly, another Korean, In Chul Baek, reigned at super middleweight in the late-'80s.)
As a two time titlist, Park made a combined nine successful defences. Eleven of his twelve world title fights took place in his homeland. He was a strong super middle, but the quality of his title fight opponents was relatively weak. For instance, Roy Gumbs and Emmanuel Otti were both coming off back-to-back losses, Indonesia's Polly Pasireron was 4-2, and Jesus Gallardo was a novice without a notable win.
The only impressive name of Park's list of victims is Lindell Holmes, and Park barely edged the American, who was a future world titlist.

10 MIKKEL KESSLER
Obviously, "The Viking Warrior" will ultimatly be measured by his performance against Calzaghe. At this point, including him in the Top 10 is based more on talent and potential than accomplishment.
Kessler is only 28, and he's the reigning titlist of two organisations. He's made four successful defences, and while there have been no creampuffs, the level of his title fight opposition hasn't been sterling. For instance, Markus Beyer was 35, and Eric Lukas, who hasn't fought since, had gone 2-2 in his previous four bouts.
What makes Calzaghe-Kessler so appetising is not only the combined record of 82-0, but also the fact that they're so clearly the two best fighters in their division. Two European champions fighting for global dominance - just as it should be at super middleweight.
www.boxingmonthly.com