I wouldn't say I love X Japan as a whole, but the songs I do love, I really, really love. Dahlia is an awesome album; I'm not as keen on their earlier stuff, though there are a few songs I love to death there, too, like Endless Rain, Kurenai, Say Anything, and Weekend.

I have their entire discography translated here, btw. (Though about half of it is in English to begin with.)