Ang Hulk's body and animation looks way better (judging from that brief Hulk seen in the preview) and more photoreal.
Ang Hulk's main problem was that they were so worried about humanizing him that they overdid it and gave him a dopey face instead of the effing pissed off monster face that the Hulk must have.
Ang actually said "Don't make him look like a monster or an ape!"
That's what the Hulk looks like.
The main problem with the new Hulk so far is the motion. His walk was
terrible and his rage flex looked awkwardly unreal in it's exaggeration...how his hands flay out before he makes fists.
Abomination looks atrocious like a boss from Resident Evil 4, only with an inferior design (I hate his tiny head. Looks like Rob Liefeld was involved.

)
It doesn't help that his face looks so much like the really sub par mutants in "I Am Legend".