Another point to make is server response time. I'm not making a claim one is better overall than the other, but at my location (boston) cloudflare's servers respond a bit faster. Just grabbing a couple different files between the two shows up to 300ms difference, but usually <100ms.
[edit] oh yeah, and this is all moot if your user already has it in cache, which is currently more likely from google.
[edit] oh yeah, and this is all moot if your user already has it in cache, which is currently more likely from google.