As the election approaches there will be a number of sources including the descriptions produced by King County Elections to help voters think about how they want to vote. The Seattle Times will also eventually publish a summary of their positions:
Voters may find extensive information on all the ballot issues at:
Page 13 and 14 indicate the positions taken in advocacy and action.
Pages 22 thru 54 contain the ballot issue summaries that were prepared by the League of Women Voters.
The Municipal League provides guidance on which ones they support and which they oppose.
I think you will find the knowledge here helpful in thinking through many of the ballot issues.