Yeah, that is nice photo representation of a Pacific-slope.
The structure and eyering on yours most suggests Pacific-slope/Cordilleran (Cordilleran being more likely by location), but I just wish it was more colorful. I've never seen a Dusky, but based off of pictures I've seen I think it would be a good candidate as well. The proportions of this bird don't look right for a Hammond's, which has a small dark bill, and longer primary projection.
I'd love to hear others input on these empids. Many people will say that you need to have the bird vocalize to be sure on the ID, but I am not yet ready to abandon a reasoned attempt to photo ID a bird that seems to fit well.
For more comparison pics, here is a bird I called a Pacific-slope Flycatcher:

And here is one that I called a Hammond's, since it shows fairly classic field marks:
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