As for me, Spiderbat's Batman is very cool. Impressive sprites, few different modes, e.t.c. But combo system is not playing good. It was first Multi-Batman, whom I played in Mugen, so he is my best favorite.
I do not know why... but I don't like Alucard's version very much. He looks perfect and plays good, but Spiderbat's one is always will be first to me. Besides, he haven't such good smart palette freedom. Same thing with Infinity Batman.
Batman New 52 by Red Hood... I love this character very much. He seems like amazing rework of Spiderbat's look, but more close to modern incarnation. Usually I play this Batman in Mugen.
by 
