There seems to be some interest in who has the best cell phone coverage in different locations in West Seattle (and the rest of the country). The following links are to several carriers that provide maps of the signal strength, for phone and/or data. Perhaps these will help. I’m on the border between ‘Best’ and ‘Good’ for Sprint, but trust me it is not either of those…so take the maps with a grain of salt.
T Mobile
http://www.t-mobile.com/coverage/pcc.aspx
Verizon
http://www.verizonwireless.com/b2c/CoverageLocatorController?market=all
Sprint
http://coverage.sprint.com/IMPACT.jsp?language=EN
AT&T
http://www.wireless.att.com/coverageviewer/
