You asked about boutique hotels, in Seattle I can recommend the Warwick :

http://www.warwickwa.com/

Its a nice place, in a good location right in downtown and was reasonable prices the last time I was there several years ago. Ask for discounts, i always get the highest discount with my Entertainment card but AAA and AARP work well too.

Enjoy Seattle, one of my favorite cities anywhere! Amelia Hesson Los Angeles http://www.meyerandassociates.com