If we're talking about only loose packed bulk .22, then I'll have to say, "dunno." I've had nothing but good plinking luck with Rem Golden Bullet, box, mug, whatever - not accurate or anything, but just goes bang for me every time (and I know others have had very different experiences with it). I've used it for plinking - 12" plates at 100m offhand with irons for some cheap basics reinforcement. Recently I got some old Rem Subsonic - packed like and looks like Thunderbolt, but (you guessed it!) subsonic. Seemed OK. Not bad for accuracy. Heck, I've seen one rifle that loved Thunderbolt - it was oddly accurate with it. I guess once you're talking loose bulk ammo, one really needn't be all that picky if it works in some/most of one's .22s.
It is all subjective so I can understand others not liking them but the 525 round value packs of Federal Game-Shok 36gr PHP have always treated me OK.
I have thousands of rounds of CCI mini-mags but I kind of hang on to them and shoot these Federals (along with Aguila Super Extra). Besides the question here was about bulk ammo.
These federals may not group match tight but I have found them to be fairly accurate and most importantly they cycle reliably in all my guns. As it happens I just ordered five boxes today at 3.5¢ a round and consider it a very good value.