I wouldn't mind playing against anyone online and take the rust off my Wario and Snake should our internet allow it and if I have time. Getting bored of fighting the A.I and my brother constantly.
I'll get my new Friend Code posted eventually. Also, final destination/smashville and no items is the only way I'll play. (Though I wouldn't mind a different stage provided it's not completely luck-based or has a strange layout like Warioware Inc. or Shadow Moses Island. So stages like Delfino Plaza and Lylat Cruise are fine by me.) I vastly prefer it that way, since I find it more fun playing competitively.