I also enjoyed Aria of Sorrow an awful lot (it was my favorite since Circle, but ranks under it in my opinion), but there was just something missing from Dawn of Sorrow. I dig the castle design and color of Portrait, but I have an obvious distaste for the anime-style character art. Also, Soma Cruz > Whiny Johnny Morris.
That said, as a Castlevania adventure, this is my favorite since Symphony. And how come Symphony hasn't been ported to the DS?