Pictures would help greatly. I like the red variety the most. I've seen pictures of all yellow ones though and they are breathtaking to see online. Since its tropical where I live I don't get to see them in person, only in pictures.
Red maple for me. The color is just so striking and beautiful. Ginkgo trees are stunning in the fall as well though. The local library has a big ginkgo tree in front of it, and it looks amazing in the fall