The concept of individuals drawing was on its way out of the door around 93-97 (and died completely after Austin retired and WCW folded), with the way things were around that time its impossible to say who drew what because people didn't buy wrestling shows out of who was on the marquee, WCW had Hogan, Flair, Macho, Luger, Sting, etc which is much much different than say the 80s where the main event was Hogan vs whoever and an undercard of nobodies compared to him(a lot of those nobodies grew to be stars but compared to Hogan at the time they were nothing, people bought into WWF in the 80s because Hogan).
93- 97 is when the brands really started to become the selling point rather than the top stars, you can say Hogan outdrew(btw without providing numbers which makes your claim very very dubious) but the fans HATED Hogan around that time, and not just the internet crowd, he was getting the shyt boo'd out of him during that time, its what prompted him to turn heel and Bret was at the height of his popularity, I think the crowd reaction is more telling to popularity around that time than buys
BUT, lets go by your logic of main event/champion = the reason why people bought into the product, Wrestlemania 10 sold 420,000 PPV's with Bret vs Yokozuna main eventing and Starrcade 94 sold 130,000 with Hogan vs Brutus Beefcake