Well, my first choice would definitely be IF. Now since that isn't an option my next pick would be, well any of the above. I've lusted over several Serrotas, Seven's and Moots. I think my choice would be made by the shop. Depending on seemed the most knowledgable about bike fitting is who I would go with. Most likely it would be the Serotta dealer though. Their fit system as well as their training is awesome. With them it is a pretty safe bet that you will get the bike that fits you perfect.