i have used stamper 50-60% of the time in every season, and 5-starred it in the beginning of the second season. it being so fun is basically the only reason i play the game so much. also that was after just being a sploosh player in A+ rank splat 2 that only just learned how amazing motion controls are. (i seriously wanna talk about how cool the gyro aim is but it's too much for this post)
i also really like squeezer, dualie squelchers (yes both kits), nautilus, range blaster, and the squiffers. so mainly the weapons that are difficult to play, and range blaster. if the weapon feels too easy it just isn't satisfying for me
my next favorite would be any chargers besides PENCIL!!!!!!!! AAAAA I HATE PENCIL AAAAA!!!!!, any dualies, sploosh (why did they give us the timmy kit and not sploosh 7 ):), slosher deco, big swig, carbon deco. i mainly play these weapons if i want to just like chill or take a break from the more mechanically demanding weapons, except chargers i just feel like playing backline sometimes (until i realize i have to rely on the rest of my team to push).
im also okay on sorella tent and it is really fun but i have to learn how to use it better becuase i only pop off like every few games and only on clams for some reason.