Not that many new production 6922/6dj8's to consider. Forgetting tonal issues the EH6922's are very quiet, rugged, and have a fair amount of detail. I found them to have ample bass. Whether I liked them or not was dependent on the component I used them in. Their tonal balance worked fine in my Raysonic 128, and not so fine in my ARC SP10 or BAT DK5.
Sovtek 6922's I've used were quiet and rugged. But, tonally, kinda clinical - not a tube I use often.
JJ 6922's - not so quiet, not so rugged, slightly warmer thru the bottom and a tad rolled in the highs. A nice tube for a 'bright' system I think.
FWIW.