Sorry I like singers with great range. Like Freddy Mercury and Dennis Deyoung even Steven Perry.
Go get Journey - Captured. Just sit back and listen to Steve Perry sing to his highest pitch and then listen to Adam. Adam has no where near the nuance to sing anything in his higher range without the SCREAM. Yes, Adam can SCREAM in key, unlike Freddy Mercury, Dennis DeYoung, even Steven Perry who can atmospherically actually sing the notes.
For Goodness sakes, even Geddy Lee from RUSH can sing in that register. Although it sometimes sounds like he's got his YOU-KNOW-WHAT'S in a vice gripped to the max!