I say it's time to make war on the word whom. It's awkward to say and even more awkward to write. The only people I run across who use it are English teachers, editors correcting your manuscripts and snotty secretary/gatekeepers who don't want to let you in. "I don't see your name on the list. With whom did you have an appointment?"
Who sounds better than whom. It's the way people speak. Webster, are you listening?