The Miz is a superstar in his own right and deserves to be off the sidelines, but he has also taken bits and pieces from several Attitude Era superstars to become who he is today.
Remember the famous phrase, "WHAT!" coined by "Stone Cold" Steve Austin? Interesting enough, The Miz has tried to push the phrase, "REALLY?" at the WWE Universe. The crowd joins in, but it's not something that they just burst out and chant during other superstars' promos like Daniel Brian's "Yes, Yes, Yes!"
Also, everyone followed The Rock with his phrase, "If ya smell, what The Rock is cooking!" The Miz has a similar catch phrase, "'Cause I'm the Miz and I'm, Awesome!" Usually, the crowd chants "Awful!" or something of that nature. But it's evident that the phrases are in the same family.
Lastly, even Chris Jericho mentioned The Miz as being a carbon copy when he returned to the WWE to feud with CM Punk. The Miz teamed up with The Big Show, just as Y2J did and he also started to dress in suits and speak very slowly after his storyline being Jericho's tag-team partner. It's obvious signs of why The Miz would take on parts of his mentor's persona.
Notice above that Miz has taken small aspects from each of these stars and tried to reinvent the magic that these separate entities once held.