I'd definitely say BTAS, however I mean the original series (1992-1996) excluding TNBA. that was no good in my opinion, because of the animation quality decreased, emo nightwing with mullet, tim todd etc. I always hated it. Brave and the Bold and The Batman were both fantastic as well, I always loved the episode "A Matter of Family" from The Batman, more so than "Robin's Reckoning" actually. Ethan Bennett was a cool character and the animation was really cool, the music was awesome and I also love Rino Romano's voice.
Brave and Bold was a cool call back to the silver age and was just a great show. I remember the episode where Batman became a vampire and locks the whole JLA in the watchtower, that was great and really funny. Overall, BTAS is the better show though with it's dark tones and maturity, It's a Batman masterpiece and has a lot of fantastic episodes.