I can't do a lot of comparing, since I have only ever used Crank Brothers for my clipless use.
I use the Candy C, and Lake MX-101 shoes. The combination seems to work well for me, and the shoes are walkable. Entry is easy, and I have had a couple of clipless falls, but whenever I tried to get out, I was able to... They have also never not held my foot while pedaling.
I only have a hundred miles or so on them, so this is based on limited usage.
I believe that there is only one cleat style for all Crank Brothers pedals (although there are ones that are designed to work with different hole patterns in the shoes, the cleat portion is the same. Therefore, if you stay with Crank Brothers, you would be able to ride whichever bike you want with both pairs of shoes.
Good luck.
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Slow Ride Cyclists of NEPA
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