I do not have the experience with competitive players that the majority of you seem to have, but I wanted to chime in more about this thread in general. Browsing much of the thread, the trend is that most of the Rosa mains have more diverse opinions (MUs in favor of Rosa are about as common as those against, matchup dependent, but with a slight bias towards Rosa generally speaking), but that people that come into this thread maining the character MU being discussed say that the MU is in favor of their character (probably 80-90% of the time), rendering most of the averages being skewed towards the opposing character more than they probably should be. I think the usefulness of this thread is also dramatically decreased simply by the lack of votes on some of the matchups. I assume that many of you are resistant to changing the thread structure, but I believe that having Rosa mains rank matchups into tiers based on relative difficulty (ie harder matchups, medium matchups and easier matchups) instead of in a vaccum, and then discuss tips and strategies against specific opponents would be a better format.
An example (emphasis on example) of this would be me ranking Shiek, Pikachu and Diddy are the hardest matchups for me, with Sonic, Wario, Lucario and Villager being the next hardest matchups and Bowser, DK and Ness being my easiest matchups, etc...
Then, instead of ranking these matchups as 40-60 or 70-30 or 5-95, you just mark something like a +2 for each character you rank as one of your hardest matchups, +1 for hard ones, -1 for easy ones and -2 for the easiest. This would also allow you to have everyone rank every character, instead of forcing people to vote on characters that they know a lot less about and prohibiting both discussion and ranking of previously discussed character. You then end up with an average ranking for each character that should naturally divide itself into tiers. Like I mentioned above, you could also create a compendium listing what the opponent wants to do in the matchups, what of Rosa's moves work well here, and what to watch out for. Otherwise, I think these rankings are rather meaningless and the whole point based system only confuses people more (people's concept of what a 60-40 matchup means vs what we have designated it to be seem to be very different).
Thanks for reading, and I hope you guys consider changing the format