I agree with you 500%, the whole movie is big budget and using Edward Norton who is a good actor were all great steps for a blockbuster, but the actual Hulk CG is so so so crappy it is painful to the eyes, i haven watched it i just saw the trailers and the Hulk CG is too miserable i cannot sit through it, the real art in a movie is making the audience get captured into the reality of how the movie feels, but in this case i cannot take it seriously when i have seen amateurs do better CG on youtube!!!
And the first thing i thought was exactly what you wrote! Lou from the tv show was far more realistic Hulk looking!!