1v1 is a giant waste of time. demigod is made to be a team based game, and 1v1 is just no fun. I've never been in a 1v1 where as soon as we were both ready to go ,the host didnt switch demigods so that he would have an advantage. not to mention 1v1 complelty eliminates any strategy from the game.
I do not think so.. IMHO, an 1vs1 map may act as a helper to put new players into the online scene. For example.. a couple of friends want to just play an "intimate" online match, or a couple a good players want to deliver one of those god-like fights on an special arena. Well.. I've had a lot of fun playing Rook vs Rook games.
Damn it .. put a crystal in the middle of it controlled by an script which randomly gives you stuff or steals it from you.. just kidding... or not.
Sorry.. enough rambling 