Right, but when Vader is using TK to crush AT-AT's, you really going to tell me he's not a superior telekinetic to Dooku, or that he wouldn't crush those same Jedi/Sith with TK that Dooku did?
You are quite correct.
Vader can manipulate rather large (and bulky) inanimate objects with his telekinesis. That is to say, he tends to manipulate larger and even bulkier inanimate objects with the Force, than Dooku does - particularly when focused solely on such a task.
But do you suppose that such feats allow him to dominate people, who have not messed around with Imperial Walkers? Are you suggesting that his non-combative feats against defunct objects - of which neither have the ability nor the inclination to protect themselves - is indicative of how well he does against a living, breathing Force wielder? Because I’d have to disagree. I’d have to tell you, that in this case, size matters not.
Par example : K’kruhk has shown to be rather proficient at moving big objects with the Force too, even when big objects are producing some form of resistance - such as spaced-aged engine thrusters. It didn’t however, help him against Grevious , the ‘non force sensitive’ deuling-threat at that time. It also didn’t help him much against Quinlan Vos, of whom Dooku is shown dealing with , pretty Forcefully. If controlling large and bulky inanimate objects was the pinnacle of Force mastery, why is K’kruhk losing to a defenseless robo-man, or coming off worse in a Force contest with Quinlan? Why is Dooku; save for a better term, shitting on all the aforementioned? Collary to this point, why does Vader not retrieve his falling son, when he’s used the Force to control larger objects? Why can he not subdue any of his opponents with the Force, as Dooku does 90% of the time?
Add that to a force enraged Savage Force choking Dooku and Ventress, and a force enraged Ventress force choking Anakin and Obi-Wan. then yeah I can't help but thinking that Vader Force Choking Dooku is a real possibility.
I’d explain why there might be a few details missing here, but on the contrary, the premise in question is not proof of your conclusion. Rather that it concludes why anyone can ‘ragdoll’ anyone. Then I suppose a charitable user might attest to real possibility of Dooku Force choking Vader. And that if it came down to who was more likely to use that power in a duel, then Dooku would win on those grounds.
Then think that Sidious was able to Force choke Dooku from another system,
Yes. I was once patient enough to explain why this isn't relevent, an explanation directed at you. Please don’t make me do it again.