I've eaten eels, pike and perch that I've caught but I'd never consider eating a carp.
When we were in Ireland a few years ago we saw a chap catch a decent-sized bream from Lough Gill and he took that big snotty thing home to eat. A few days later we saw another guy catch a very decent sea trout (from where I stood it looked to be about 7lb) from the river as it flowed through Sligo town centre. He was fishing off one of the bridges but the fish took him ages to land (we were watching for at least half an hour and he had hooked it quite some time before we got there), and he had to walk among the tourists, rod held above his head, and make his way down to the river bank. Eventually when he landed the fish he threw it up into the crowd that had gathered to watch him. There must have been at least 200 people by that time and we all burst int a big round of applause for the guy. It really was some very skilful angling we saw that day.