I think Gackt's solo stuff was okay for the first few years after MM, but I've pretty much lost interest now. He will always have been best in MM, and that's how I'll always think of him ^.^ (Gackt Era is my favourite <3)
I always imagined Mana to be quite the opposite behind-the-scenes, I've heard so much about what a dominating personality he has, etc - but I like the part we get to see best (quiet, beautiful, polite Mana XD)
Oh, I *LOVE* the Beast of Blood PV - that's my favourite Klaha Era song, it's just so amazing! It really is one of their best videos too. You're right, Klaha does have a great image/style in that PV - they all do! ^.^ I know, I think it's hilarious seeing how freaky Kozi is in particular, and how hardcore he can often look, then you see him cuddling cats all the time XD It's adorable <3