Top Ten Tube PreAmp of all time?

Jadis JP80mc, my favorite for years. A classical lover's heaven! Also the Aesthetix IO (haven't listened to the matching line stage, but if it's anywhere near as good, it should be included). The ARC SP-10 Mk II is also a classic. In the less expensive stuff, the Audible Illusions 3A. Everything else mentioned is also worthy-there's no shortage of fine tube preamps.

Rogue 66

Essence Audio Jasper: These hand made 50# behemoths are utterly neutral, wonderfully musical and best of all, do not fail with years of listening. At $10000 new they are a bit pricey but can be had on the used market for a fraction of the new price. If you love tubes and demand reliability, this is the one.

CJ PV10 huge bang for the buck - even better is the Premier 17LS.

I really like the Encore DL 2010.2, has everything at a very reasonable price, great phono stage. Not very well known, but has done well in Stereophile shows. Worth checking out.