HW dudes are too unpredictable to build into stars. Jones was potentially a star but obviously doesn't have the mentality for it. DC is too old to put any solid investment behind him. Weidman is the epitome of vanilla. Rockhold has potential. No-one at welterweight outside of GSP and Diaz have any sort of following. Pettis is too fragile. No-one cares about anyone lighter than 145.
Aldo is going to hammer Conor. But don't worry, Aldo will step up to 155 immediately afterwards and you can enjoy Conor vs. <insert non-threatening striker here> for the vacant 145 title.
Honestly HW is the least of my worries. They're going to need a real superstar to bring it out of the gutter. I'm talking a chiseled KO machine who can speak English and goes on at least a 10-0 run. Its highly unlikely. Overeem could have been that guy (but that's near impossible now) and maybe even Hari if he kept his shit together and had a promising sprawl. I'm not interested in a bunch of out of shape wrestlers and failed football players.
Bones had a great thing going for him. Picked up a ton of popularity with his Cormier scuffle and just defined greatness in MMA (minus his terrible babyface attitude). If he had just gone full heel, he would have been fantastic. But with his recent troubles, he might become an even bigger star if he were to return and didn't miss a beat.
DC... no, just no.
Honestly, Weidman has some promise. He's a cocky fucker and if he continues to dominate the division and throw in some decent promos, then I can see him becoming decently popular over time.
Rockhold is just as bland as all the other AKA guys minus old school Kos.
A GSP return would be great for the sport as the John Cena-esque babyface but that ship is slowly sailing away. Diaz is awesome and one of my favorites but he's just not good enough to carry the 170 or 185 torch.
At 155, we're going to be stuck with a try-hard in Nurmagomedov for the forseeable future. Cowboy could become a semi-star if he keeps at it.
Believe it or not, a lot of my casual fan friends dig Conor. "That little irish guy who stole Jose what's his face's belt!" He has the fighting style and mouth to become a huge star (at least internationally) if he could win the strap. Which is a huge if. Not to mention the murderer's row waiting for him. It's a tough road but that's what'll take him to the next tier.
Ronda is awesome but will only last till Cyborg knees her pretty face in like she did to Gina's career.
Bones is our only hope. Get well soon.