For all the knocks on Vince and the WWF, he also was at least astute enough to not pigeonhole his product at the expense of the talent/fans. With WCW you just inherently knew that guys like Chris Benoit, Booker T, Raven, or Rey Mysterio Jr were never really going to get legitimate shots at the top of the card.
Vince had his core group for years: Bret, HBK, Undertaker for most of the 90s but he also pushed Austin, The Rock, Mankind, Triple H, Jericho by the early 2000s, etc. into the main event scene. Some of that was due to names leaving the company so others took top spots by necessity but a lot of that talent were also risks: Benoit, Eddie, Kurt Angle, Rey Mysterio Jr, Edge, Randy Orton by the mid & late 2000s.
WCW really dug their own grave by botching Bret Hart so hard (that was such easy $$ just wasted) and I don't know that WCW (at least if Bischoff had stayed in power) wouldn't have screwed themselves by 2005 anyway by still trying to lean on the Flairs/Hogans/Stings/DDPS/Nashs/Lugers in the main event scene while the mid-level talent either jumped to WWF/E or went to the Indies/Mexico/Japan.