I've got pretty much all the Batman: The Animated Series official maquettes from WB Studios and DC Direct as well as the Superman: TAS maquettes and the Fleischer-style Superman maquettes.
Very, very nice stuff! I actually prefer this style to the 'mainstream' art sculpts that are usually based on guys like Jim Lee, Alex Ross, and so on.
As far as favorite Batman maquettes, I'd say I prefer the DC Direct Batman from the 1992-1995 Batman:TAS the best. The problem I have with the later 1997-1999 series is that designs stopped being mostly Bruce Timm-inspired to Glen Murakami and Shane Glines designs... I just didn't like those redesigns that much (although I loved seeing Batgirl back in her original, far sexier black bodysuit costume!) and the emphasis on black and white didn't help, either. The Joker from the second production episode batch was also fairly weak lacking real eyes (they were just 'dots'!) and his red lips. Way, way better Joker design for Justice League.
As for later Batman series, no question that I hated The Batman. Didn't get maquettes from that series, either!
But that said, don't downgrade The Brave & The Bold series currently airing on Cartoon Network (or will be once they have enough episodes 'in the can' to finish the series' run). It's a valid interpretation of Batman --- based on my favorite Batman artist's designs, Dick Sprang, with a smattering of late 1950s/early 1960s DC design trends -- and features a lot of great interpretations of characters that wouldn't have had a chance to be animated if not for this show! I'd not only like the Dick Sprang-style Batman but also maquettes based on The Flashes, Plastic Man, the Green Lanterns, JSA members, and The Question!
The Justice League maquette was far too short. Would have loved Dr. Fate, Supergirl, and The Question statues, too...