Davao is not a place that I would go to, but I am a white guy who likes to take it easy. I guess depends on if you are worried about guerillas down there.
Cebu is nice, lots of call centers, people who are very fluent in english. I looked into a place there but ended up being lazy and not following through on it.
Going back to Phils for another 3 weeks, nice place to getaway to and work. I have several workers that are just amazing.
Have you been before, and what made you choose these two places as a base to work from?