Re: Batman: Arkham City
I'd much prefer to have Catwoman instead of Robin.
I personally feel that Catwoman provides a much better foil for Batman in any medium, and I would say that especially in this series of games she would help maintain the more adult atmosphere and themes they have going on.
Having Robin show up would be unnecessary IMO and could also threaten to shift the focus away from Batman. Having Catwoman however would still keep the focus on Batman and also provide more mature themes and repartee between the two.
Just imagine Catwoman appearing randomly throughout the game, the whole time you're not sure if she's there to help or if she perhaps has ulterior motives... providing a bit of sexual chemistry along the way also! Whereas Robin on the other hand might possibly be just a smattering of banter about the situation they're in and then perhaps a few puns here and there.
I personally feel Robin couldn't provide anything for Batman in this game other than 'hired help' so to speak. Catwoman would be the much better choice IMO.
Also, as someone else on here alluded to earlier, it would be very cool if we had bonus challenge maps with Catwoman as the playable character similar to the Joker in B:AA.