West Coast is a versatile dance that can be danced to a variety of musical genres including Big Band Swing, Country, Pop, R&B, Hip Hop, and Rock & Roll, as well as the traditionally favored Blues. The current trend is toward the more "Contemporary" flavors. Checkout the USA Swing Dance Network website for the top national DJs song picks: http://www.usaswingnet.com/top_dj_tunes.htm
Dance on...
P.S. My current favorite in the Seattle venues is an Argentine Tango song called "Vi Luz y Subi" by Carlos Libedinsky. Diana Krall's "Temptation" is good too.