Im watching Yu-Gi-Oh! in english,I think i like it dubbed better because then i can focus on the pictures instead of constantly non stop reading lol. Plus although i don't mind subbed anime, with yugioh i find it MUCH easier to watch it dubbed because i just cant follow whats going on in a duel that easily when reading subtitles. LOL i am such a weirdo XD
I enjoyed the original Yugioh but didn't care for GX. I only watched a few episodes before deciding to skip to 5D's. My brother liked GX but I just couldn't get into it. I loved the first two arcs of 5Ds though. Are you watching the series in Japanese or dubbed?
My favorite character was probably Atem, although I liked Bakura and Marik as well. Have you ever watch Yugioh 5D's? I've never seen Vampire Knight/Guilty before but it looks interesting. Unfortunately, I don't get much time to watch anime while away at school.