Not really. Akamai has presence inside many "too big to peer" networks, while CloudFlare doesn't (for now).
You can't just compare CloudFlare to Akamai at the moment, they are following very different strategies.
Is there something that Akamai can do that CloudFlare cant?
Both services seem to be highly available and very fast from around the world. What does Akamai do here that's better?
To provide an example: transit to DTAG via GTT (CloudFlare) is always saturated at peak hours. So Akamai has a big advantage (direct connection) if you want to reach Deutsche Telekom customers.