I say we redirect traffic to the PS! server as much as possible first. Plus we can always have randbat tourneys indefinitely there anyway. How long apart is really a matter of choice. You can put one up right now, or a month later. Personally I see little / no difference anyway. Those who will join will join anyway, seeing how holiday season doesn't directly mean a higher participation level, so I feel that we have nothing to lose by hosting the next one right now.
Also, why don't you want to host two in a row? Are you against hosting a tourney, or hosting a tourney immediately after you hosted another? Does it matter :P
As for who, I guess it is whoever is active enough. Most of us don't visit the site daily, let alone set aside time to create and maintain brackets and provide support/response for any questions participants have :/
Honestly this whole concept is so rough and unpolished it's ridiculous, we have like one or two people from time to time shouldering the responsibility and trying to revive it and it's gone back to rot so often it's genuinely disheartening to think about.
wow that got dark sorry
we should definitely host them, and host them sooner rather than later. nothing really stops us, y'know? just whoever has the time / likes the next idea enough to really put the effort into it. that's the practical solution we need to focus on than to listen to my whining xD