JJ power tubes are fine. It's their preamp tubes that are garbage. They used to be great bit the last 3-4 years they seem to have gone down in quality. I'm a big fan of Electro Harmonix lately. They seem to be the most durable and less prone to noise and microphonics. Not sure how they are different from the other New Sensor brands but to me they sound better than all their other offerings these days.
