The sad truth about Bret is that he wasn't much of a draw. When he was the top guy, the American wrestling industry was about as low as it could get. Outside of the US, he was a consistent and big draw, but WWE did much less international touring in the 90s, basically just the UK and Germany with the occasional show in Austria or Italy, and then a few tours of Japan mostly in 1994. And while international touring had better houses for most of the 90s, it's hard to use that as the metric for how much of a draw he was as a top guy in America.
The same argument goes for HBK, who was also a top guy during a very down period, and then WWE exploded once HBK and Bret were out of the picture, coincidentally within months of each other. I think a lot of people confuse and conflate draw with over with the crowd who was there/being fans of them yourself. Bret's return to WWE in 2010 pulled a bigger rating than he ever did when he was the top guy for them.
Edge's reign on Smackdown killed its ratings forever, and I personally don't think Jericho should even be in the discussion since he spent the vast majority of his career not even in a position to be the one drawing fans in anyway. Outside of his Undisputed reign (which tanked hard, for various reasons, not just poor booking but also weak performances and least credibility of the four that could have won the title) and his 2008 run that had critical acclaim with the HBK feud, but did worse numbers at every event than the 2007 and 2009 editions of PPV he headlined, he was a mid-upper mid carder almost his entire career.
