2003 Hulk takes this.The fighting skills of the 2008 Hulk were impressive, but nothing exceptional.Blonsky, who had no time to adjust to his supersoldier enhancements was able to dodge his blows in close quarter combat and survive, his bravado attitude made him receive that king of the stomp kicks.
2003 Hulk had a running speed outmatching U.S. Army helictopters and his leaping abilities were like in the comic book, mimicking fly.His durability and heal factor would also allow him to win.The IH version had scars after the fight with the army, he didn't show any sign of accelerated healing.He defeated the Abomination, but even with the chain he had to fight to strangle him.2003 Hulk would have bested Abomination bare hands and ripped off his head.