Everyone will tell you their preference with tubes. I'd say just pick what looks good to you on paper, and give different stuff a try so that you can form an opinion.
I'm partial to New Sensor power tubes (EHX, Sovtek, Tung Sol) and Shuguang preamp tubes, personally, but I do like to mix some New Sensor preamp tubes as well.
In my experience, New Sensor have been the most reliable. They're almost always good-sounding too. Just don't use them in CF positions.
In my experience, JJ's have ben the most unreliable. Power tubes, that is. Their pres are solid, but while they're not bad-sounding, they have certainly not been my preference (neither pres nor power)