Why do people think that HYS was inferior to YG? He might even be superior to ZBT!
OK, the part about ZBT was a stretch.
But he was definitely not inferior to YG!
There are three very clear incidents that indicate that HYS was at least as good as YG.
1. The Huo Du assassination. HR couldn't differentiate between the two stones(?) that hit Huo Du. This indicated that HYS and YG had the same eventual end result when projecting their TZST. However, I think it is fair to believe that HYS was hiding further away from the stage than YG was. This is because he actually had the advantage of the birthday wishing as distraction (hence no need to hide further away) and that he had the eventual desire to show up (to wish GX). On the other hand, HYS, being the crazy freak he was, would likely had chosen to hide and not show up unless absolutely necessary (his intent was to protect his family and nothing else). Thus, I conclude that while the end result was the same, HYS showed more proficiency in hitting this TZST and YG fans cannot argue that they achieved the same level of profiency. Note: I'm not saying HYS is better than YG based on this because after all, TZST was not YG's signature skill.
2. HYS and YG's palms exchange. YG was desperate to find out about his Gu Gu. There is zero doubt that he was going 100%. On the other hand, HYS was using his Luoying Shen Jian Palms, which was his signature skill, but not his best skill. In other words, HYS' secondary skill was able to match YG's masterpiece until about the maximum. On which, HYS was able to match the fully-powered palm from YG with a simple strike of TZST (written in the novel as such). HYS clearly did not struggle to stop YG's maximum.
3. Encounters with GWM. GWM was winning against YG until he decided to save GX. Clearly, YG was still beneath GWM. On the other hand, GWM decided to surrender after HYS came in (the fight where ZBT, YD and HYS tried to corner GWM). Now, this is not a clear cut win by HYS on GWM of course. It wasn't that the 3 of them were gang-ing up on GWM, it was more of a tag-you-are-in kind of battle and GWM might had decicded that there was no way he could handle 3 such fighters in a row without exhausting himself eventually. However, it can still be noted that GWM was impressed with the power of HYS' TZST. For those who believe that HYS was the weakest, they often cite that HYS would likely have weaker internal, but this battle with GWM decisively proved otherwise. In fact, it might even suggest HYS' internal was far better than YD and ZBT! GWM had just encountered ZBT and YD and had just gotten a taste of the Greats' internal and yet he was shocked by HYS' internal! I don't buy the story that GWM was just impressed because HYS hit him with a pebble and he was shocked that a pebble can do so much damage. We know that GWM does reconaissance work and HYS was a very well known figure. GWM was not shocked because it was via TZST, he was shocked because it was so damn powerful. And guess what? GWM had crazy-*** internal so for HYS to shock him...