I had a friend (passed, GDC) who almost exclusively used hair jigs. He was known locally for "tearing up" anything that swam with his hand tied jigs. He taught me a lot about how to fish these beautifully crafted hair jigs.

With saying that, I use both hair and plastics. Pouring my own heads, building my own rods, and tying my own jigs is a passion I got from the 4-H Sportfishing Program. As was stated by others, I let the fish dictate what they like that day and my confidence with both is about equal. Do I prefer one over the other? Yes, but I guess that comes from the time I spend in creating the lure I've caught fish on.