Town Hall Challenge
It's a rough one for sure. I've done it on all difficulties but even then it's easy to fail.
The main keys are having healing to cancel the frozen effects and coordinating taking down the popsicles quickly when they're up, and finally the person that takes the power up from the jester needs to ensure that the other players are in the aura and get to the king as fast as possible. If you have the powerup do NOT husk hop over the king if you're a kernel corn. I've seen that far too often and it's beyond annoying, it can ruin the run.
I recommend 2 sunflowers and especially Vampire Flower (since they can take care of themselves very well) and Stuffy Flower (since when she defeats zombies she creates heal stars at the impact point). Rainbow Flower pots for the sunflowers are excellent since they constantly emit heal stars and healing breaks the freeze effects, making healing crucial in this hunt.
Getting on the roofs can really help keep some of the damage off you. Pea Shooters and Corn are best at this. Citrons have the ball form speed bonus and lots of health. I've beaten it with all characters but I can't recommend Chompers, Roses, or Cacti for this one on higher difficulties. Torchwood is solid and the breath of fire attack is great vs. the yeti imp swarms!
