Both sport and food- there are consumption advisories on all the waters I fish, so I only keep them if I'm going to eat them that night AND I haven't kept/eaten anything that would put me at odds with the guidelines.
That usually means I keep a few bass each winter from ice fishing, when the flesh is nice and firm, and have a delicious fry. The rest go back.
Species are usually trout, bass, sunnies, perch, pickerel and land lock Salmon. I'd like to start fishing for Atlantic salmon and stripped bass, but that's a whole ' set of gear and tying supplies.
I prefer fly fishing, but I'm no snob- I'll happily chuck bait or whatever else may be required to entice the fish to let me look at them up close and personal for a few seconds. I love hiking back into big woods and disappearing for a few days to fish, but I'm almost as happy on a friends boat with a cooler of beer.
Fishing is kind of like bacon that way I think. Some is better, sure... but none of it's bad, right?