Pike is good - had some in Germany. Never tried zander, but hear it's tasty. Not sure about cyprinids - they apparently taste predominantly of mud (which is why a lot of Polish recipes are heavy on the paprika - to disguise the flavour). Seem logical really. Virtually all the fish which are good to eat are predatory. Given the old saying, "You are what you eat", I suppose we should add, "and taste of it".
I was fishing the Grand Union a few months back with some pals in a club match. A couple of blokes of obviously Eastern European origin came along. "Any carps?", one asked. My mate said, "Yeah, mate. I've had nine", which of course he hadn't. Our new friends eyes gleamed and they produced Argos telescopic rods and proceded to tackle up. They were quite disappointed when we told them to go away...