Cherokee is also known as 'Ooh La La' and is one of the Evison 'Patio' collection, so very compact and free flowering. 'Rebecca' has a very intense color and is argued as the closest to a true red of any clem. If I had any more room in sun for clematis, this one would be on my list. Personally, I don't care very much for the barred or two-tone flowers but that's just my preference.

I've seen a mature 'Fireworks' and it was gorgeous with huge flowers. I was told it was a very large and vigorous grower as well. I bought one and it has not been vigorous for me. :(

I know nothing about the other two.