I'd agree with Sam (although to be honest, I've not played Milo). I played Dela last month, and it was a very good course ... but I expected more. It is brown and not as beautiful as some of our better courses in the NW. That being said, I know a course doesn't have to be green and picturesque to be a fantastic course. I was surprised that all the hype about Dela didn't match my expectations. In fact, I preferred the Lake Casitas course to Dela (and they also have a top-of-the world shot that I think is as good ... and it's a hell of a lot safer than Dela's with regards to spectators/other golfers, IMHO). If I could only play DG one last time, I'd bring along Halle Berry, Carmen Electra (and yes, Carmen Luvana too) and show them how to play ANY course, then I'd take them back to have some fun with me and my wife (sorry, I've been watching too much "Swingtown" on CBS).
Seriously, I'd pick (by reputation mind you) Milo, but if in WA would hit Sea-Tac, Lakewood and White River (then collapse in exhaustion ... especially after my lovely guests).
Wow, my second time on NW Disc Golf News was a doozy!