There is a noticeable difference when it comes to the facts about how they look. But it is much less in terms of the physical actuality of how they look. Like I said earlier, these are people who can blend in, or play less physical in deception should the need arise. Too much or too big a muscles would take too much from it.
And just because CA weighs more, he could simply just be a little more dense. Like same muscles as an average guy yet dense enough to do more , have the potential capacity for more power, speed, toughness, and fluidity.
Maybe a lot of what they need to do is not be so vague about everything. I think the problems from Superman Returns were just subtle mistakes like the 1st Hulk movie. This is Superman, the hero that literally flies right in your face, with shock and awe. They were way to subtle with him. In stead of saying or implying things, just show it and they should be ok. Do think Chris Nolan and Zack Snyder will have to get used to doing a lot more daytime scenes.
What new Wolverine movie was announced? To come out around when? Not talking about the Magneto origins they were planning, right?