which anime do anda think i should buy?

Well, on Amazon, Skip Beat is about $50 while Ouran is on sale for $35, and The blu-ray version is on sale for $25. However, it depends on which one anda want the most, so we can't choose that for you. I would recommend buying your favorit if anda have the money. Otherwise buy the cheaper one for now and save up for the other. I'm assuming you've seen them both. If anda haven't though then just look at the genres and summary of both shows and try to figure out witch tampil is lebih suited to your taste.