"For me, she's always been one of the people you can talk to," Miz said at LAX this week. "She's done a lot for the company, and she's a really good person as well."

Miz shares one example of Steph's positive influence ... saying she green-lit one of his ideas -- The "Dirt Sheet" video series with John Morrison -- which would eventually pave the way for WWE's YouTube channel.

FYI -- WWE now has nearly 93 million subscribers on the platform ... by far the most of any sports-related account.

But, it's not just the wrestling business that impressed Miz -- he also praises Stephanie for creating Connor's Cure, a foundation specializing in pediatric cancer research. Stephanie was inspired to create the charity after Connor Michalek, an 8-year-old WWE fan died from medulloblastoma, a rare tumor that affects the brain and spinal cord.

Stephanie and her husband, Paul "Triple H" Levesque, founded the organization after Connor passed away in 2014 ... and have raised $3.8 million and assisted over 500 families worldwide, according to the org.'s official website.

As we previously reported, Stephanie resigned from her role as Co-CEO of WWE a few days after her father, Vince McMahon, returned from his sixth-month hiatus.

Despite the shakeup, Miz says he's excited about the company's future and is encouraged by the profound impact the Superstars have on people's lives.