It's been awhile since I've played the Early Access version, but even then the game had a ton of weapons. The final release seems like it has more than double the amount it did since I've last played (although I admittedly never made it past the junkyard in the old versions).
So what are everyone's favorite weapons they've come across so far? There is a staggering amount, and I keep seeing new ones here and there even though I've played the game a ton at this point. I find the lightning pistol or rifle to be absolutely devastating, especially with the bonus energy weapon damage and flying corpses mutations. It's incredibly useful in the later stages with legions of enemies, where it can arc between them. I found the grenade shotgun today, too, which is also indispensable, provided you don't blow yourself up with it.
Melee weapons seem okay at first, but I feel like they'd be totally useless in the late stages. Too risky. Not really feeling the plasma and laser cannons, and the toxic crossbow. They're powerful and useful in specific situations but way too slow and not worth holding on to for long.