Two former champions, fairly unremarkable, against a limited but dangerous fighter who was one of Hopkins' better challengers during a long reign where the competition was lacking.
I think he gets stopped by Pavlik, but stops Taylor. Taylor wouldn't be able to deal with someone as rough, strong and physical as Echols and gets put down late IMO.
I think Jermaine's crappy stamina makes Echols a live underdog. He's not as good as Abraham or Froch but he was so tough and awkward I could see him hanging around and catching Taylor with something late in the fight.