Grimlock ♥ Ultra Magnus

Berlin Batman: Wayne is a Jew in nazi Germany.   His parents were murdered for being Jewish.   The Batman versus nazis?   Um, yes, please!   So much yes.   It's an alternate look at how Batman may have come about in a different time.   Not all that much changes, to be honest, but... Batman versus nazis.   I mean, he could have decided to become Batman just to punch nazis, no backstory included, and I would have been like YES.

Bride of Leatherwing: Leatherwing is Batman + pirate.   So I'm not sure I buy this: stealing, looting, etc?   He basically gives a death sentence at the end, couching it in terms of 'eh, we'll let the sea decide' and I didn't buy that, either.   

On the other hand, it's told in pirate chanty verse on page, and I love the whole Felina being his bride and him having a Robin.   On a pirate ship.   Not without its faults, but fun enough for me to forgive said faults. 

Curse of the Cat-Woman: failed policeman Bruce Wayne becomes a PI.   When he's charged with keeping a wealthy man safe, he must choose between his new lady, Selina Kyle, and said man.  

Pretty much what the title sounds like: Kyle is a were-cat.   I didn't see that ending coming.   Tragic and hopeful at the same time, I was fascinated even more by what tales could be told - and were not.  I know it's unlikely, but I sincerely hope DC revisits this tale at some point.

All in all, three drastically different, but enjoyable, alternate universe looks at Batman.