Are you serious, bro?
Thing is, there was not a single possibility WCW was to win in the long run. It's infrastructure was horrible, described accurately by Chris Jericho who got $0 paychecks and empty delivery boxes.
However, let us forget all of that. WCW in this hypothetical situation has a sound infrastructure (no doubt Ted Turner ordered a renovation) and Eric Bischoff was still there and was working with a creative team of former WWF Creative writers and WCW originals that don't have the name "Vince Russo." WWF's 1997 problems got the better of them, and the Attitude Era did not take off, but it was out there long enough to give Turner and Bischoff the idea. WWF has now been bought out by WCW, and Raw is War merges with Monday Nitro.
I can't comment on Ted Turner's personality as I don't know it too well, but he wouldn't be as active as Vince McMahon. More likely he would hire VKM and perhaps fire Bischoff to put him in his place. Both of them are vicious capitalists, they'd get along.
The Attitude Era would take off in a different form, and the nWo would have ended at Starrcade 1997 with Sting winning the WCW World Heavyweight Championship.
There would be a similar amount of titles, maybe a few more, and divided amongst the shows.
The competition would arise with TNA, Dixie and Bischoff would have met and teamed up, and the whole shebang would begin again.
Thunder would be Smackdown WCW edition.
The Rock wouldn't have been forgotten, his legacy would have lived on and he'd have a similarly successful career.
John Cena? Definitely. Vince is in charge, so Hell, he'd love to introduce John Cena. However, there would be differences to his career which I shall happily describe later.
Starrcade, Summerslam, Halloween Havoc, Royal Rumble, Elimination Chamber, and Wrestlemania would exist. Starrcade would become Wrestling's world series, and the product would be more international than it is with McMahon purely controlling everything.
Bischoff would have been fired.
Also, shut up about Ryder, you don't know shit. The PG era wouldn't exist, the combination of WCW-WWF would have brought out a quasi-Attitude Era, like in 2002-2004 and would have continued to this day. Cena would have to deal with McMahon AND Turner to change it around, but would fail because Turner knows he has to keep a core base happy, and silence McMahon about it.
Hulk Hogan vs Stone Cold would have occured. Actually, I could see Stone Cold taking the place of Sting as the destroyer of the nWo.
Hulk Hogan wouldn't have retired, and his injuries would have been taken care of.
Benoit would've hit the industry today.
Cruiserweight division would still be around.
WWWYKI.