I can do 3 very well. And I guess I can do 2 in one hand very well, meaning I can do four if two in each hand at the same time counts. I always slip up pretty quick when I try to do 5. Can't say I really practice my juggling very often though
I can do the clubs pretty well, though i'll usually mess up eventually with the flipping. I haven't tried rings, but I can't imagine they'd be harder than clubs.