What the hell are you talking about? For the most part, yes, everyone loves heavyweights. But I don't know what bars you go to but the ones I have been to have had people in it that would be heavyweights as well. That doesn't mean shit.
A great fighter is a great fighter. The size isn't important.
Yes Tyson was great. You think everyone loves the one punch knock out? Are you old enough to remember the Mike Tyson vs Peter McNeely fight? I remember a lot of people that were pissed off because they bought a PPV to watch a fight and the ring entrance was longer. People want to see a good fight.
Manny has 38 KOs. You do see knock outs in lower weight classes. You also can see more action in the fight because they don't get gassed so fast.
When Tyson was around they talked about the old days with Ali, Liston, Forman and so on. But it wasn't just them. There were big fighters in other weight classes.
Sugar Ray Leonard
Hector Camacho
Roberto Duran
Marvin Hagler
Thomas Hearns
The list goes on.
Then there are fighters from lower weight classes around Tysons time that were big.
Roy Jones Jr.
Arturo Gatti
Oscar De La Hoya
Shane Mosley
If you only watch the heavy weights you are missing some amazing fights.
If you just want to see heavy weight fights there is always Sumo.
James