Visa for Newlyweds

Hello,
My fiance and I are currently living and working in China, where we met 2 years ago. She is from Philippines and I'm from the U.S.A. We will go to her country to marry, but since we won't start the paperwork to start processing to change her passport to USA, can she use her passport, which will have her new married name (my last name) to enter on a s1 type? Or is it wise to apply for tourist L in this case? I'm aware of the other documents needed, birth certificate, Letter of Invite, Marriage Certificate, etc.

Thanks,
Aaron