For me LASW won out over PW because I played PW on the DS like 2 years ago so I don't really count it as a may game, only a late port.
I finally gave LASW a try and didn't like it at all, but that wasn't a surprise. I'm not a fan of those type of games. It could be the best game ever in that genre and I still wouldn't enjoy it. Oh well, just had to see for myself. Still impressive that it was made by one guy apparently, doesn't make it any more fun though
I'd say Phoenix Wright. I never played that series before and decided to try it. It is a load of fun and an interesting critical thinking game; better than I expected. I hope the sequels come to the iPhone too, like Apollo Justice, Miles Edgeworth, and the other Phoenix Wright.