I have a love/hate relationship with all these kind of things
Well, there are more than 5, but I have to be fair, so these are the bands I've been (...and I'm still...) obsessed with
(in no particular order)
Duran Duran
Japan
The Beach Boys
Placebo & Suede - maybe I don't play their albums to death like when I was a teenager, but I definetely think that my life would have been totally different without them, and I still have a deep love and passion about them.
The Jesus and Mary Chain
The Raveonettes and Delays are my lattest adquisitions LOL
Thank goodness you said specifically "bands", cause if I had to put the solo artists as well I could have died!!