I understand what you're saying, I just completely disagree.
1) If there were 'best' exercises, all bodybuilders would be doing the same stuff at the gym. This is a generalization, simply put.
Not everyone is that knowledgeable or literate to be doing the right exercises out of the 100 or so available. It's your generalization to actually think that and negate the obvious of what I've just mentioned.
2) This logic of yours about skullcrushers/CGBP: lifting the weight, not concentrating on the muscle etc, and these exercises not being very useful; do you have any solid evidence to support this?
You want me to provide evidence for something so obvious that it speaks that 'obviousness' for itself, right..... I'd rather not stress it as you've just given your intelligence in this matter (Explained the same situation to another person and thankfully only once, and he got it, so it's just you here).
3) Decline being superior to all other chest exercises; do you have any evidence to support this?
An understatement, didn't say that and didn't portray that either. This is what I said:
I've said this before and am gonna say it just another time that, the more inclined the bench press it, it more it works the shoulders and back muscles and the harder it gets. The more declined it is, the more the weight gets drawn down to the chest muscles.
And I really donno what you took out of it....
4) Even if, say, an exercise works for you, your body will eventually stop responding to it. You'll eventually have to try something new to stimulate your muscles. Thus, how can there be specific exercises that are good or bad?
Wrong, if you get used to a certain exercise, increase the weight, you don't just leave it and start something new.
Exercises can be characterized as 'good' once they have an impact on your body and 'bad' when the opposite clearly happens. That hard to understand?
5) Different people respond differently to the same exercise. Some people's genetics allow specific muscles to grow faster than other people's, that does not simply the one with a smaller muscle part is doing something wrong. If you're trying to prove you're stronger at the same height/weight, there are so many factors that contribute to this, that it's just ridiculous to even compare.
I agree to the highlighted statement, however, the reason why I stress is that we have 'nearly' the same built, if not 'exact', so theoretically, we should be able to do the same exercise or even close to it, but its not the case for him as he clearly doesn't give his best. My statement was sound, but you just didn't see it that way.
Without any conclusive evidence, everything is subjective and therefore, a matter of opinion; not a fact.
You speak of evidence as if some writer would write you a personal book for it and as if I, myself am not worthy of evidence myself, right..... Speculation, trial and error is what I do a lot before opening my mouth.
Also, why must the weight be so important to you? Ego-lifting is not going to get you anywhere.
Body building is all about pushing the limits (of course without hurting yourself). I started like most people with lighter weights, and increased in time, it didn't happen over day. By saying that, 'jealously' is a more suitable term to use for expression, rather than ego-lifting (A really lame thing to say btw, especially to a person like me).
I'm sure you can lift that weight and I hope in time you lift more. I respect you for that weight you are pulling down on that exercise. You certainly can pull down 45kg on that whereas I can't as of now.
Posture and form is my main concern. Not more weight
A person learns posture and form in the first week or so for body building and not 3-4 months. So your reason really doesn't make much sense.