I got two RCA JAN 6AS7G and they sound superb compared to the RCA 6080WA pairs as well as 6080WC pairs. More vivid and lively, and base are solid.
Very satisfied! I need to start thinking where I should sell all my 6 x 6080 now......
hp4funWC are not that good. Mullard/Phillips 6080 are supposedly good, Bendix 6080WB are godly, 6AS7GA are a cheap version of the 6AS7, identical sound just different glass enclosure. 6AS7GA can be found on parts-express.com.
scottlu(imo) Tung Sol / Cetron 7236, Bendix 6080WB are up there for transparency and open sound. Anything from GEC is supposedly better, good luck finding GEC... !