Everyone knows Jamerson, JPJ, Sting, Wooton and Flea and could name a load of their songs but there's a whole load of incredible bassists who most people would never have heard of. I thought it would be interesting to hear some suggestions.
My favourite is Al Cisneros of Sleep, Om and Shrinebuilder. I don't think any other heavy bassist is as creative or has as much groove. He can go from crushingly heavy riffs to Eastern inspired psyche grooves. His playing styles can be interesting, he often picks halfway up the neck and usually plays a Rickenbacker through pretty much any high gain amp and a selection of effects.