Not all of these fight are possible, but these are the boxing matches I'd like to see.
Wladimir Klitschko vs. Vitali Klitschko
The brothers can decide which is the true heavyweight champion.
Adonis Stevenson vs. Sergey Kovalev
Both are explosive power punchers, but true light heavyweight champ Stevenson showed slick boxing moves last fight and Kovalev is a pressure fighter. Should be far more exciting than your average power punchers' snoozefest. Winner can take on super middleweight kingpin Andre Ward.
Gennady Golovkin vs. Peter Quillin
Golovkin is a power puncher who can box; Quillin is a boxer with power. Quillin is underrated. Winner faces Sergio Martinez for the true middleweight title.
Floyd Mayweather vs. Tim Bradley
Bradley's relentless will should be a rare test for Mayweather. I wish that Golden Boy-Top Rank cold war would end.
Manny Pacquiao vs. Danny Garcia
I don't think Garcia can compete yet with Mayweather, but his power should pose a good test for Pacquiao (if the latter gets by Rios). The cold war gets int he way of this one.
Danny Garcia vs. Ruslan Provodnikov
The win over Alvarado and performance against Bradley makes Ruslan a viable contender against Garcia. Both guys have power, will, and are hittable. Should be an all action, fight of the year candidate.