I liked Ain't She Sweet but I guess it does depend on whether you can forgive teenaged Sugar Beth and embrace the awesomeness of adult Sugar Beth. OTOH, I have disliked quite a few of SEP's other books, especially the overrated Heaven, Texas. I'm not sure I've come across anyone with a style that similar to SEP's, but you can try Rachael Gibson and Jennifer Crusie. Maybe Victoria Dahl, too? Her books are sexier than SEP's, though.