With tubes, I very rarely have a flat. When they come, it's due to road debris and it would destroy either type of tire. (Not many pin ******.) I've never had a flat on gravel with either type tire -- even at DK with 50/55 psi in 38mm tubed tires. With tubeless, I've never had a flat anywhere but I haven't ridden nearly as many miles with tubeless. I like both systems. But tubeless requires monthly fluid checking / maintenance. If I only rode one set of wheels/tires, I might be more inclined to ride tubeless. Since I switch wheels/tires on a regular basis, tubes are better for me. With a tubed tire, you just check the pressures and go. With a tubeless that's been off the bike, you've got to check / top up the fluid, too.
For me, there isn't much difference in performance between the two types. Since tubeless requires more maintenance, I almost always ride tubed.