*possible spoiler*
marrerom swallow this before you speak again: Wolf is an experienced alien hunter.
He throws the alien just as easily as the alien was thrown in AVP.
If the chick from the alien movies can hold the alien with her boot and shoot it in the head I have no problem with wolf who has probably 75kg on her stomping on an aliens head. Do you think everything Wolf will do is going to look respectable to the aliens? He's the cleaner and stomping on heads, shooting from range, using gadgets is not above him.
When it comes down to it, you only have the scene where wolf holds the two aliens by the neck to legitimately complain about. The rest is rubbish, like you said about Wolf throwing the alien, which is perfectly fine as shown in AVP.
So you have this one scene, where Wolf does not hold the aliens for almost any time longer than shown in the trailers.
You are under the illusion that humans are fighting aliens. They are not. This is a predator who has hunted aliens before. This does not excuse their loss of apparent motor functions in the sewer scene but most of your "complaints" are rubbish.