I'm a hardcore Whitney and even I know for a fact that Mariah's Christmas album is the best-selling Christmas album of all time for a reason. I don't like this performance of Whitney at all (i can't stand when people, who aren't familiar with WHITNEY HOUSTON, choose awful performances from Whitney to showcase her voice)- it's a little too choppy for me (one of the reasons why I love Pre-Bodyguard Whitney a whole lot better.) Mariah's take on Joy To The World way back in 93/94 seemed a little more heartfelt to me and more powerful. But that's just me... 80s Whitney will always be > 90s Whitney.