I'll vote the Cyclops, just because of your passion for exclaiming its been the best bike you've ever ridden and I can relate to the thought of sharing a message of something you are excited about.

I know that doesn't mean the best bike you've ever stared at, or the best bike you've ever got a smoking deal on, but where the rubber hits the road...literally, that is where it counts the most.

I would take all those factors - looks, ride quality, etc...and run them through the smile-o-meter. The bike that brings the biggest smile is the winner.

I have a very small stable - a Schwinn homegrown, a Centurion Le Mans, a Nishiki Prestige, a PX10, and a Zebrakenko Lightning. As goofy as it sounds, I'd probably keep the Zebra. That bike is smoking fast, light, fits me well, and brings a big smile to my face, especially since nobody really knows what it even is. But I know what it is...fun!