Good romance anime series that matches description?

Ummm... I suggest you watch Kaikan Phrase and Hana Yori Dango. Hana Yori Dango doesn't have the greatest art, but it still has a good story. Also, if you're up to reading, then you should definitely read the manga versions of the two I said above, and if you really want reverse harems, then read Barajou no Kiss and Stray Love Hearts.