I am curious as to how they can pull it off. Hulk, at least the last two iterations, is incredibly stout and muscular to the point that he already looks anatomically wrong. Also, he's at least 7 ft tall. Ruffallo would probably wear prosthetics and be digitally magnified an shit, which kind of ruins the whole "Look, not CGI!" thing a bit.
Ferrigno pulled it off well but the effect hasn't aged well. Compared to the CGI hulks, his version looks lame.