I use the Pitch Black and I had a Korg DT10 before that. A used DT10 would be pretty cheap, It has huge leds that you can see from the far side of the stage and a really tough aluminium casing.
The PB is smaller and has a nice pseudo strobing display (three variants iirc). For some reason I always seem to end up with a Korg tuner except for the Boss TU12H I use for intonation adjustments and acoustic instruments. A swinging needle tuner seems best for that job, it's fast enough to tune a banjo. If tuning a banjo is possible at all