You had me with then you lost me. I know a fair amount of martial arts study (as much as 10 years, well more like 6 years since I didn't actual read anything when I younger, just practiced and heard bits and peices) and you had me with you for most of this. I would go on to argue a couple things with this but what I'm here to do is defend Hinata and (no offense) tear down this argument as best I can.
1) Starting with your *Jyuuken* and first bolded. It's the name of the actual fighting style of taijutsu "Gentle fist" yes but it is the fighting style of ALL members of the Hyuuga clan, it is even labled as part of their kekkei genkai. It is not for advanced Hyuuga but all, and to say that Hinata isn't advanced in that style is a lie. She has been mentioned and seen to be on a level nearing Neji, who is said to be the most gifted in the whole Hyuuga clan. She was said by Hiyashi I believe (correct me if I'm wrong) to be able to protect Neji just as he once protected her (the whole branch family protection thing). It is safe to say, that coming from the main house of the Hyuugas (which I also include Neji because how Hinata, and Hanabi are both part of the main house, while Hiyashi and Hizashi weren't confuses me so I put them all in the same general bloodline) She has perhaps some of the strongest eyes and the strongest taijutsu in her clan (Not better then Hiyashi, Neji, and I'm not sure on her little sister since we haven't seen her in a while)
Now I'm going to skip the little lecture you gave on martial arts because, frankly it has nothing to do with Hinata's taijutsu's relivence until the end, which is where I'm going with this.
2) I'm focusing on that huge chunk at the bottom. Now...by your logic of saying that Jyuuken, isn't real...you're implying that Sakura...could beat Naruto, Madara, and defeated anybody who uses ninjutsu because I'm sure the Kyuubi, Space time manipulation, and manipulating the elements through a few wave of the hands isn't...real. If you haven't noticed my friend this is a manga, almost (and I'm pushing it here by saying that) nothing is real, some may not even find one real aspect in here. In 16th century when shinobi were supposedly from in their prime, they never fought large scale wars. The simply handled small tasks, in small units, given to them by the Shogun, individual daimyou, or anybody who had means of paying for their survices. These tasksed usually assassination, sabotage, and espionage. This whole war isn't real. That little peice by saying Jyuuken isn't real is knocked out as a valid argument in this conversation. Now again I go back to saying that Jyuuken isn't for advanced, but ALL Hyuuga and carriers of the Byakugan, Hinata is indeed advanced, or at least very skillful in her clan's, famed combat. Also for the last time, a teacher determine the skill of the student, only the student does. This one's for you Frozenstein...You can be taught by the Sage of 6 Paths and still be ass. It's all what you take from them, and how well you can apply their teachings, and your dedication and skill level. If being trained by a Sannin was hella important, Sakura should be on par with her teammates Sasuke and Naruto and be able to blow most every shinobi out of the water, which, neither Sakura nor Hinata can do.
My position still stands, Hinata>Sakura
I'm going for the vitals of your argument where you're placing more emphisis on Sakura's abilities.
1) Sakura has more knowledge of the body...that can be said surgically, she is a medic, now in a battle, the only knolwedge that would help you about the body is vitals such as organs, veins, arteries, etc...Hyuuga specialize in attacking not just chakra points but the body's organs and veins and vitals as well. To say Sakura has more knowledge in the body is fair but it can't be said for the battle feild as Hyuugas has specialized in attacking the body's weak points such as the vitals. Their fighting would be useless if they didn't attack something, that burst of chakra they emit, attacks the nervous system, chakra ciruletory system, and it takes study, not always in medical training, but in combat. Hinata=Sakura on battle knowledge of the body. Now for experience, regardless Hinata>Sakura how??? 16 years of Jyuuken>3 years of Sannin training (IMO) if you want you can say Hinata=Sakura in experience. Sakura has more experience in on the oporating table, not battle, she's only specialized in battle fairly recently maybe some months or a year after training with Tsunade.
2) Yes she is an amazing healer but chakra is needed for that and for her strength. I know you may here this a lot but Hinata has the ability to kill in one shot, as well as cut off the circulation of chakra in a single shot as well. Sakura has the ability to kill in a single shot If she has her devastating power. Now with both being close ranged fighters, and having about the same speed, but Hinata having some more flexibility then Sakura, it can be safe to assume that Hinata could pull of a hit, that maybe wasn't fatal but haulted her flow of chakra, or hindered her in some way to prevent her from fighting. People emphisize this because Sakura has no such ability to cut off an opponents flow of chakra (unless you count some sort of poision, which we've never seen poision able to do so seeing as both Chiyo and Sasori were poision masters and yet could't stop Sakura's healing method). Hinata has that over Sakura. Now with that strength and medical prowess gone (assuming Hinata pulls off a hit which is a high posssibility), Sakura's stamina, and endurance would be nullifiyed.