The key to a great BJ is a great suction technique. Proper lips locked on to your dick the correct way lol, imo
BJ's are like art (well. they are art). There is no single 'correct' way. I don't think men realize that you don't universally like the same kind of BJ. There are different styles and the "correct" way for you might be disappointing to someone else who likes a completely different style of BJ. I've had a lot of regulars who were exclusively BJ sessions in the past. After meeting a few times and it became evident that we had compatible "styles", we'd agree on the details change the usual GFE "formula". A client in Vancouver always called it cock worship sessions, which I found funny. If someone is really enjoying it, I can't tell you how much of a charge it gives me.
But not all BJ's are the same. I had a super uncomfortable experience a few years ago that I'll always remember and that illustrates what I mean:
On one hand I had a regular who came to see me specifically for the BJ, would not stop raving about it. He liked a specific type of BJ that happened to match perfectly with my style.
On the other hand, I had an appointment one day with someone who kept asking me to do this, that, this way instead, etc - basically completely different than what I was doing. Some of what he was asking I don't do, some I wasn't enjoying and it overall wasn't enjoyable for me or for him. We came to the obvious conclusion that our BJ "styles" were not at all compatible. I mean, they don't need to match up perfectly, there's ways to find a middle ground most of the time. But this was complete opposites.
It would have been better if he'd specified he wanted, as many thankfully do, because I could have told him we weren't a match. But it was one of the most awkward situations for both of us when we had to agree that we were so mismatched there wasn't any point in continuing. He was super nice, we were both uncomfortable but it was the only possible conclusion. I gave him part of the donation back because I did feel bad for him. But I knew it just wasn't going to work for either of us. He had assumed that there was only one way to give BJ's.
So, you could ask one guy and he'd tell you my BJ was the best he'd ever had. But if you asked the other, he'd tell you he didn't enjoy it and I didn't do it the "correct" way.
Who you agree with is a matter of what your "correct" way is. If you think there's only one universal way that all men enjoy BJ's, then it's pretty confusing to read both.
And if you read only one, how much value does it have if you don't realize the person might not enjoy the same type of BJ you do at all lol
There is no single "correct" way. There are different styles and finding someone who's style matches yours is what makes the difference between getting a great BJ or a shitty one. (excluding complete lack of skills, that's a different story)
It's also a reason I'm hesitant to committing to a BJ only session with someone I've never met because neither one of us knows what the others "style" is. I enjoy giving a BJ I can tell the person is really loving. Otherwise it sucks for both of us. Does that make sense? Do some of you know what I mean?