Best Weapon?

Excluding mythics & exotics. probably something like the MKSeven

Goo gun. Fun and danger in one convenient package

A lot of options here. And it depends on the time they were in the game and the play style since some of these weapons would be absolutely broken if they were in the game now. Either Infinity Blade, Enhanced Havoc Shotgun, Overclocked Pulse Rifle, pre nerf Minigun and P90 or just straight up the OG pre nerf Pump Shotgun that was able to deal 300+ damage from 50+ meters away.

I've been playing since Chapter 1 season 4, and I gotta say, the Gatekeeper is probably one of the best shotguns we EVER got

Skye's Assault Rifle. When I use that thing in creative it feels almost unfair.

Without any debate the OG infinity blade

Mythic mk7 is definitely a contender

The infinity blade

r/FortNiteBR members: "why doesn't anyone engage in the community anymore!!1!11! All you do is complain!!!"
Also r/FortNiteBR members when someone posts literally anything that isn't a sweat showcase: *downvote spams random guy asking a genuine question*

To answer the post though, there's 3 answers. Zapatron is technically the best but it only existed in the game for like an hour before getting immediately removed. The Infinity Blade is close second because this was a time we only had Build Mode and the Infinity Blade did 20k damage to all structures plus passively healed you plus healed off of kills. And third place goes to the OG Pump, because it used to have the sniper's 2.5x headshot modifier and you could cancel the pump animation simply by switching to a second pump, so people were basically doing 300 damage every .5 seconds and could mow down your whole squad.

I didn't play the old chapters so not completely sure but Waterbending has to be up there