--------------------------------------------------------
You are definitely not a moraon for liking Adele so much; I like Adele too, but comparing her to Whitney is a bridge too far. Whitney is in that special category of a dozen or so women are true iconic talents. Even as an Adele fan, she is 2nd tier at this point in her career. Btw, winning a lot of Grammy's as Adele did is partially a matter of who you are competing against that year. (Adele didn't have much competition.)
I am not sure Adele could have won Grammys in the mid-80s if she had to go up against Michael Jackson, Bon Jovi, Duran Duran, Guns & Roses, Bruce Springsteen, Prince, Madonna, Marich Carey, Luther Vandross, Cyndi Lauper, Phil Collins, Garth Brooks, Journey, U2 and Janet Jackson, etc. I don't think all of these artists were necessarily better, but they sold tons of records and won lots of awards and in one of those mid-80s years, Adele may not have won any Grammys. - 2011 was a 'very down year in music; Whitney won Grammys competing against icons.
With all of that said, I love Adele's voice. (Just keeping it real!)