Don't really have a main because I like playing a few characters
Wigfridge because she's fairly easy and helpful to the team, don't mind the bonus damage and armour too, haven't played her much since her rework though (not much dst + playing other characters). Having a character be passively better at combat makes it funner to fight things I guess.
Wormwood again helpful to the team, making actual use of seeds, bramble husk to get all the cacti in the world for free, although I'm hoping for more changes in the beta because right now it's not looking good for my plant boy
And Walter, because I've gotten pretty good and not getting hit by most enemies, so permeant full sanity for free feels soooo good. Never really fight bees or BQ unless in a group bug enough to just bully her (probably the boss that has resulted in the most team wipes for me) and while my sanity will get tanked fighting a lot of bosses, Walters super cheap tent brings it all back up.
Although I still feel the slingshot to be pretty lacking (most enemies will run up and hit you before you can get a shot in so it's real only use is aggro drawing). Lower hunger is something I dislike about him and wig because I always end up starving on my way back to base.
Honourable mention to Warly, Wortox and Wendy.
Abby makes farming group mobs and even bigger threats stupid easy because she's the only character with access to reliable AOE damage.
Wortox because punching butterflies to eat is funny, his big downside is pretty much negated with a tam' o and he gives good motive to go out and kill stuff.
And Warlys just a fun challenge and change of pace, making me want to actually go out and collect different ingredients for more/ new food, although you can just eat meatballs and meatstew