They are publicly down trodden by an enormous percentage of the boxing world whilst being the heavyweight champions for the best part of a decade and so dominant no clear top contender exists. Only 1 other heavyweight has ever done this (Lewis). How can they be "overrated".

Who had better win opponents than the Klitschko's?

Lennox Lewis? Maybe

Evander Holyfield? Perhaps

But none of the below...

Riddick Bowe? Fought mismatched opponents for the most part and only wins of great significance are against Holyfield!

Mike Tyson? Fought bums until he won the championship, fought good fighters until he got locked up, then fought shit for wins and everytime he stepped up to the plate for the big time got wasted!

Larry Holmes? Fought a lot of bums but some good opponents too. The good opponents like Witherspoon gave him all he could handle, he got beaten by cruiser Spinks and wasted by Tyson. Best win was probably a green Mercer.

Muhammad Ali? Fought bums and cruisers when "prime", Liston was a plodder, this Ali was too weak to threaten a modern HW. A stronger 70's Ali indeed fought better opponents but apart from George Foreman they were nothing special. Frazier and Norton would be knocked out today by journeymen and Shavers barely knew how to box! Lyle was no better than Austin or Brock.

George Foreman? Beat exclusively bums and weak jawed opponents. Only barely could box. Everytime he faced a decent opponent (Young, Ali, Holyfield, Morrison, Briggs) he lost!

Only Klitschko's, Lewis and Holyfield can claim to have "beaten strong opponents".