It depends entirely on the character I'm playing as, but I'll include some honourable mentions:


Demolition Job - my Raider character's Instigating Heavy Sledgehammer.


Old Cranky - my Minuteman General's Instigating Six-Crank Laser Musket.


The Scrapyard Special - my Automatron crafting character's Wounding Automatic Pipe Rifle.


Dragon's Breath - my Survivalist guy's Explosive Double-Barrel Shotgun.

My Enraging 10 MM is a lot of fun. Not my main weapon of course, I only use it to frenzy an enemy if they are in a group. Took critical banker perks just for that gun

Only Enraging weapon that is better is probably a Enraging pipe pistol.

The Deliverer is a reward. Find the railroad, do Deakin's first mission and The Deliverer is yours.