First off, you're posting a pic of the Hulk that is not characteristic at all of Al Milgrom's Hulk to prove your point, if that is even his work. I can go through my entire Hulk collection and grab scans from the Al Milgrom period and you'll see his Hulk looks completely different.
If that picture of Hulk above is indeed by Al Milgrom, I can tell you straight away that it's definitely not his finished inks over the pencils. Al's finished pencils do not look like that. An inker greatly influences the way a finished piece of art will look and can completely change the appearance. Those inks almost look like Bob Layton's style just from the technique he uses and some very characteristic hallmarks about it (eg the crosshatch on his biceps, near his ribcage/ above his abs among other things). I would hazard a guess the inks might be by him. Layton has a very sleek, refined style which is what I'm seeing here, and is not something you'd associate with Milgrom. Layton is a prime example of an inker who changes the look of a penciler so that the artist looks much better than he really is.
I have hundreds of examples of Al Milgrom's art from different comics, and I know his art doesn't look like the above, nor does it look like Sal Buscema's or John Byrne's. Bryne had a very distinctive style, which is definitely different to Milgrom's. You couldn't really confuse the two, especially since Byrne's Hulk run came just before Milgrom's, and their Hulks looked very different.
And Sal's Hulk is very distinctive too, and has certain hallmarks. I wouldn't have immediately thought the above image was by Sal. It's of a 70s Hulk, that's for sure, but it's not quite Sal. Even the Marvel Legends Face Off Hulk, which people claim is Sal Buscema's Hulk in figure form isn't quite Sal.
This is all well and good, but I'm still struggling to see why your attempting to disprove my opinion, lol. Geez, it's not that serious, I feel the way I feel and that's pretty much it. I don't need it validated or cross referenced, I personally think his style when drawing the Hulk is somewhat reminiscent of Sal Buscema, bottomline. You posted your own pics, to me, those don't look all that different from Sal, and they certainly don't look all that different from Byrne IMO.
Let's remember too, that every artist has different periods. As I stated before, Art Adams is my favorite of all time, but I wouldn't dare compare his work on Longshot to his X-men period. Likewise, I don't particularly care for Todd Mcfarlane, but his Spiderman is the most iconic for me. Milgrom's stuff on Spiderman and some other books were pretty wretched at times, I get that, but I like his Hulk nonetheless. I don't like Frank Miller as an artist, but I thought his Daredevil stuff and TDKR art were awesome. It's simply about preference. If you notice, most of the guys I mention and like are pretty much all the same time period, which could be why I have a soft spot for them. It was my generation, I won't apologize for liking what I like, but we can go on and on and on.....
Back on topic, the original topic, I do think making the Hulk look somewhat like the actor goes a long way towards making him realistic. The mannerisms, the emotions, all that comes from real people, and when you do it under the veil of the monstrous Hulk features, it makes the illusion more complete.
Put it like this, (and once again this is my opinion) the best scene in either of the Hulk movies was this right here:
The emotion and expression in this scene, as we see the Hulk go from anger at what he first perceives to be another threat, then to embarrassment as he realizes it's Betty who's come to see what he's done, is all because of the fact that we can see Banner (or Bana) in his face, we can feel that emotion the same way we could in Avatar, because it's being drawn from real people.
I'm not saying it should be a twin, I never said that, I love the huge brow, the big jaw, the gorilla-like features (which once again I think Sal & yes Al did very well) but at the same time you could still see Banner in there. I don't know how many times Buscema has done the split panel transformation sequence and you can clearly see the similarities. I don't think it does anything but help with making the character seem like a living breathing creature.
I don't think at any time in TIH did I feel like the Hulk was actually in the environment, and it wasn't just for lack of technical trickery, it's because he looked like a plastic figurine with zero real emotion in his face or eyes that felt palpable.