Well I would be on the fence about this because come on, I've been to tournaments and trash talking at tournaments is more personable, and less of an issue, but when your mic-chatting with some random kid you don't know it's anything but a good time. I'm not saying this is for people with thin-skin, but more because it gives Nintendo and it's patrons a bad look. I'll be the first to say the Halo community is the saddest group of kids I'v ever seen. I play Halo, but I don't even mic anymore cause it's sad. Bunch of 10 yr. olds talking like truckers, and obviously Nintendo doesn't want any part of that, and I'm with them, but would it be cool to mic-chat when I'm playing my buds, or my friends through SWF? It would be nice, but we over at the Mario Strikers Charged thread have found ways to mic-chat alternatively.
And for voting items on and off, in Strikers, when you decided to host a game amongst friends, you had to first determine the rule set on your own, then your room was enterable for anyone that was in standby on your friend list, and they could accept invitation,decline invitation, or preview rules I believe. If you don't like a rule set, I'm willing to bet that you can just preview rules, then decline match type. If anyone is so lazy they can't organize their own matches through the boards, then we have more problems than a skeletal online system. We have been using Wi-Fi for a few months now, and we haven't had much ot complain about.
The ONLY thing I think should transfer over, is in PokeMon Battle Revolution, if you played a tight match with someone, you could both agree to exchange battle vouchers. I would be more than content if they made a rivals system online, where after a good match, you could both agree to add each other to your lsits.