Ive been listening to Stadium Arcadium, and think there are some excellent songs on there. Okay they may not be the most complex works but they are melodic and really listenable (is there such a word?), it's the only music I've had on in my car for a few weeks.
Back on topic, I found myself in the same situation as you Bigwan when I took up playing again last year after a long break. I'd always played rock with a pick (in originals bands) and wanted to learn new styles (both music and methods of playing). So I binned my picks and started to learn fingerstyle, I found that also led to me wanting to play different types of music. Attending the local jam night has also helped me diversify, we get a variety of musical types there. Bassists are a bit thin on the ground so I get to play various styles and learn a lot on the fly.
More recently, I've become a bit of a slapper that's got me into more musical genres. I've even added a few slappy bits into some of our bands tunes, hopefully without being too OTT and naff lol.
Pete.