For plinking I've not found anything better than Blazers. They are cheap and shoot better than they have any right to. I have been getting way too many of the Remington Golden Bullets that won't go off, so I steer clear of them, even if they're cheap.
For target stuff, I got great accuracy from Remington Eley (the cheap yellow box version) and CCI SGB (I'm not sure if it's made anymore) and the regular Gold Medal Match (not the Ultra Match). I've shot more expensive stuff, but for the money, these really seemed to shine.