I have the digital Stabila and love it but even the simple versions are superb.
Even if all other levels were just as strong and accurate as Stabila the red rubber end caps on Stabila levels would set them above the rest. It's amazing how helpful that simple thing is when working alone.
I use a Stanley Magnetic (Helps keep it on TV wall Brackets ) and has proven very reliable, I also use a Bosch DNM60 With the Digital Inclinometer that has been brilliant.
I've always used stabila levels I even have a couple of stabila laser levels. I tried to save money and bought a 6ft Stanley level but it was out in about 6 months.