1. BONES - Created DtB, Ouran, FMA (ending sucked, but it was still an enjoyable series), and Jyu Oh Sei. Higher quality when compared to crap ratio. Soul Eater looks promising as well.
2. Madhouse - They fucked up Neuro, but they otherwise solidly deliver. No real heavy favorites made from them, though.
3. Sunrise - Bash 'em all you want, but when they make a good show, they make a damn good show. Props to them for actually making original series as well, instead of simply adapting anything and everything under the sun (a la the moe fags at kyoani).