I've a few favorite bikes - many of us do I'm sure. Hypothetically, if I absolutely had to eliminate all but one, which would I choose to hang on to? The road? The MTB? The single-speed? The cruiser? The low-racer? The folder? I ride them all, some more than others, but to eliminate any of them would be like culling a member of the family. Which of your own bikes would you keep above all others?