Yeah rings are AMAZING. From personal experience they have the lowest droprate of all equipment too. Rolling +10 rings is pretty hard.

I like Bracelets as well as it is the only one that boosts DEF the most. Really useful to keep my girls alive longer.

For the time being, my pumpkin equipment goes to my stat-weak, one-slotted non-event girls.

I Gave my Event Ring to Hanamomo cause she only has 1 slot and her atk is already so high that an extra 400 is not useful but that extra 5-600 defence is a god send.

I have found that defence actually plays a big roll now and my teams with 3-3.5k defence with equipment take so little damage it's almost funny.