Andrew,
I have a fair bit of experience at both courses and I'd have to say they are pretty close...ECC has a great set of par 3's and SCC's are really weak. SCC has some wonderfull dogleg's and medium length par 4's compared to ECC...The wild cards are conditioning and fame...If you can play Sahalee in August, you are in for a treat. It will be in perfect condition and play much like it did for the tourny's it has hosted(except for the rough)...
They are both really nice courses with two of the best west coast supers around, lowkey memberships, totally walkable.
Andrew, If this has to do with you bandon trip, trust me, just go to bandon and play till you feet fall off!!! No other golf course will improve your experience...
good luck!