I would go with the KLF 20's. The appearance difference was enough for me. I looked at the RF-3 and thought good for a college student, not someone that wants to build their long range system. I was able to demo both of them in the same store and was really impressed with the 20's. They were even set up in a home theater system. I used the "Matrix" for the demo. The guy smiled at me and said how loud do you like it? I said crank it up, so he closed the doors and proceeded to make my freaking ears bleed!!!!
You will love the 20's or you can send them to me and I will keep them for you. LOL!!!!!!!