Lean towards Washington. Depends on how motivated Dimitrenko is though. Dimitrenko in his prime was certainly a better fighter than the NFL reject though.
Competitive fight. Neither is a top heavyweight but both are half-decent. Dimitrenko has declined from his better years (2006-2011). He had talent, but lacked heart.
I can see Demitrinko lying down early so he can get to the front of the queue and get an exit row seat on the plane back to the Ukraine.
As was shown in the Miller fight, yes. But Dimi has more history - the infamous 'trying to quit' vs both 5'11'' Vaughn Bean and 5'11'' Chambers, and disgraceful quit jobs vs Pulev and Parker. The only HW who had less heart in recent history among HW contenders or gatekeepers was Tor Hamer.
Not saying it isn't worse or that Washington wouldn't win today, but he's also completely lacking in the heart department and clearly inferior to Dimitrenko when he's on. Who is a solid European level operator. Washington got a gift against Nagy and a gift draw against Mansour - Truly an awful fighter.
After seeing Dimitrenko's last match, I'd go for Washington. Washington has the spirit to outbox him.
Tor Hamer had great skills but as soon as his opponents had any success at all he wanted out now this is a guy you could say has less heart then price