With respect to the Voting Gauntlets, for the previous one the mechanics were changed so that now a "losing" condition is triggered by a 1% difference in points. As you may notice, that's a super small margin! Before I think it used to be 10%?? Not sure, the wiki doesn't say anything about it.
For better or worse, this has made it much easier for unpopular characters to stay competitive, last-minute upsets to become common, and more even matches to be a constant seesaw of losing streaks. For example, Amelia had wayyyy more supporters than Shanna did, but Shanna hit a losing streak right toward the end and the bonus points from that let her just barely win out over Amelia.
I don't mind it too much, since before picking a popular character meant you were doomed to a low overall score and a lot of winners were foregone conclusions. When bonus rounds get triggered so often, though, it's a lot more exciting and your use of flags has to be more strategic! On the other hand, Voting Gauntlets are technically supposed to be popularity contests, so people can end up feeling cheated when their team was huge but they got screwed over by the other team getting a bonus round at the last second.
I'm on Team Shanna since I use Voting Gauntlets as an excuse to promote an ideal-IV'd unit to 5*, and she's done pretty well for me! Both in that I haven't been dying very often (Killer Lance + Moonblow + Quickened Pulse does good work) and that being on her team has let me get up to the 2,000s in total rank so far. I just use 5-10 flags per bonus round (depending on how many she's scheduled to get) and then start dumping 200s at the very end.
For the record, there's a spreadsheet that shows who's expected to get bonuses when and win in the end! Don't take too much stock in the projected winners, though, since the final results switch around a lot. It's mostly just useful for telling if your chosen hero is expected to get a lot of bonuses and therefore if you should hoard your flags or spread them around evenly. It's also good for showing rough estimates of when bonuses are, so if you know you'll be at work or in class during a string of bonus rounds that you should spend your flags earlier.
ALSO one more thing; if you're like me and have over 100 dueling crests piled up, I've figured out a good use for them! If you have any bonus units who need some SP, bringing them into arena during the weekend gets them 12 SP per kill. Bring two dancers (preferably of a different color than the unit you're grinding in case you get walled by weapon triangle disadvantage) and a healer, then just keep picking Beginner and you should hit matches that are pretty manageable but have units with high enough levels to earn you SP.
I got both Merric over 600 SP and Anna over... a lot of SP (though I leveled her through 5* so she got SP from that too) using this method in a pretty short period of time and i still have, like, 140 dueling crests left SO definitely worth checking out if you're drowning in swords and have any bonus units you'd like to work on!
will i ever make a post in this thread that isn't super long????????? probably not.