I haven't used SuperTech, but ours is different than yours anyhow, and our Mobil Super is (we think) a bit different, but I have used it. So, for the three I've used, Mobil, Pennzoil, and Castrol, I've had good luck with all three conventionals, along with Quaker State, too. I'm running what I'm running simply because that was the best deal when I built up the stash.
I really think it's hard to go wrong with any of them, assuming they meet the minimum specifications for your vehicle.