Beyonce's E5-G5 sounds really really thin. Her voice is naturally high when she sings, the timbre is high, so obviously she's gonna hit those notes effortlessly, but there's no depth and power to it. She may do the Mariah/Whitney belt, but she will never NAIL them with power and volume. Besides her highest note is only Eb6, and it's not even whistle register.
You should have added Mariah's You're So Cold in in there
What the hell, why can't you just select 10 random songs from Mariah's discography as the top ten itself..