I'd favor Bika at this point, by a really good/competitive decision. I think both are past it, but Bika has a little more left IMO.
If this were two Abraham fights ago, it wouldn't even be a question IMO. He's looked like sh*t since the Jermain Taylor fight, but in that last Stieglitz fight he finally looked a bit like the AA of old.
Great fight, like I said I'd pick Bika by decision.
Bika always have career resurrection after successive heart-breaking losses ( all on points) and he is into another following back-to-back losses to Jean Paul Mendy and Andre Ward back in 2010. He is now WBC super middleweight champion after four impressive wins and has even made a successful title defense by split draw with Anthony Dirrell.
Abraham on the other hand seems to be on a downward spiral and not even his career rebound against Robert Steiglitz convinces us otherwise.
Bika by narrow decision over Abraham in an exciting, hard-fought bruising action-packed fight.
MIddleweight was King Arthur's camelot. That is where he was considered a special fighter. When he moved up he was not as effective, as seen in the Super 6 tournament. Bika is a tough challenge for anyone. I think he would edge Abraham in a close fight.
Arthur is protected from dirty tough fighters like Biko.