I'd say my favorite piece of camping gear is my chair. Idk what brand it is off the top of my head but its a small low to the ground chair that folds in half. It's black and I got it for like $5 at a goodwill. Its really comfy and I love using it when I go fishing.
I also love a good water shoe. I haven't camped near a river in a long time so I don't have mine anymore but I am quite fond of them for my mountain trips.
and of course I love my Fly pole. Can't go anywhere without it.