Did you see Storm in the 80's? She's a Dead Kennedy's fan all the way with a dash of Ministry. Though I can envision her listening to softer Enya crap when she's relaxing.
Based on his background, I'd say Logan probably likes some folkish music, Kingston Trio type stuff, but also some rock stuff, but more country type rock, like Lynyrd Skynyrd.
Pietro and Wanda would probably, due to their upbringing, like a lot of eastern european gypsy music. Fireside dancing with accordians, twangy strings and the like. I think Wanda's stuck closest to this, while I think Pietro would look into some classical stuff, the intricacy of the pieces making up for any "slowness".