help ....

Should buy City. Origins is good but City is better.

Not much point hiding a public giveaway :P

And up to you. Might be better just waiting for the GotY release like the other games.

no, arkham city is a better game, and origins (despite being a prequel) is pretty much a direct copy/paste of AC (plays exactly the same, but - bewilderingly enough- with one or two more functions/moves than AC) - the game world is pretty much the same as well. Id say just wait for it to be bundled, or at the VERY least, wait for the GOTY version with all the dlc to come out at a good discount.