Honestly both fights would be great. But I think Pavlik would be a little bit more fun to watch just because he throws more punches and is probably more open to get hit by Abrahams. Could be a Gatti/Ward type of scrap lol. Both men without a doubt would be severely brutalized!
I favor Abraham over Pavlik, but that fight is MUCH closer than Kessler vs. Abraham, where Kessler would dominate.
Stylistically though Kessler vs Abraham might be the more interesting match. But as far as craziness I'm not sure if anything could beat Pavlik vs Abraham.
kessler is the more techinical fighter and has better skills the AA, AA is yet to fight a elite boxer (or at least the calibre kessler has with calzaghe, and pavlik with taylor)
pavlik easy. both guys are middleweights who are in the primes of their career and both are undefeated. kessler still has to rebuild his reputation after losing to calzaghe.
Abraham vs Pavlik. Would rather see Abraham stay and try to take over the Middleweight division and a fight with Pavlik is the key to that.