my first trip to Paris was a few years ago with my husband-while he was working. It was Christmas Eve and I was amazed to see how busy the Eiffel Tower area was. For blocks, streets were filled,-but never jammed--with locals and tourists. It was just gorgeous!! We had 24 hours to see it all, which, of course, we didn't. It mattered not!! We were newlyweds (ahhhhhh)
When it comes time to check flights, I'll be happy to give you the scoop (IF I'm not laptopless).
Maybe you'll get that famous DL BE treatment and get wined and dined all the way.
PS--don't forget the CVG option. It doesn't take much effort or $ difference to make the connection thru here.