Official information here (pdf).
Basically, question one is just asking if either of two proposed initiatives to amend the King County charter should be on the General election ballot. Both amendments would make the county executive, assessor and councilmembers into non-partisan positions. They differ however in how that would happen, and how information would be presented to the voters. If Question 1 passes, then Question 2, regarding which of the two proposals would be on the ballot, becomes relevant. I'll wait to Question 2 to discuss the merits of the two proposals.
For now, the question is if either of them should be on the ballot.
I am generally in favor of direct elections when it comes to questions of how government should be organized (as opposed to specific questions of policy).
So my vote here is: