Pavlik would destroy Echols. Echols was a B/C level fighter. Pavlik had flaws, but, he was much better than Echols.
Echols only chance to win is to force a shootout and you can't win a shootout against Pavlik. He's a tall, rangy, heavy handed volume puncher that does everything off the jab. What happened when Echols fought a tall rangy volume puncher (that didn't even have power)? His eye was pounded into oblivion and shattered. Pavlik TKO8