The Tri-Beam Laser? Here's a laser that suffers from damage threshold. Because the beam is split into three, that means the enemy's damage threshold and resistance are calculated in three times. For example, whereas the Brush Gun on an enemy with a DT of 15 would see a simple 78 - 15 = 60 damage equation, the Tri Beam laser sees a 25 - 15 = 10, THEN 10 x 3 = 30. If it were a single beam, it'd be the EXACT same damage as the Brush gun, but it's not, so the damage suffers from high DT opponents. Can this be fixed? Yes, with maximum charge cells, but now we have an ammo issue because we need 5 times the amount of ammo we needed before, and the Tri-Beam laser itself already needed 3 times the normal amount. I need 15 Microfusion cells to be able to fire ONE effective shot from my Tri-Beam Laser when facing a high DT opponent.
The Tri-Beam is much more likely to score a critical hit, though. And when it crits, it's devastating.
Also you forgot to mention the optimized MFCs.
They do 1.3x damage, - 5DT, have only a very slight modifier on gun condition of 1.1, have a 40% lower weight, and they cost 3 MFCs to make 2 of them.
So, one effective shot is 4.5 MFC, not 15.
With the introduction of that ammo there's no need for Max Charges anymore.
You also didn't mention the Tri-Beam's much higher ROF.
Outside of VATS and Turbo mumbojumbo the Tri-Beam is just a way better tool for crowd control.
Besides, the Medicine Stick itself is a frickin expensive weapon. Not only it costs a fortune, enough to buy several thousand of MFCs just from the price difference between it and the Tri-Beam, also its ammo is scarce and expensive, and needs frequent vendor visits.
MFCs otoh are dirt cheap when bought as bulk. The Khan armorer often stocks bulk ammo in huge quantities. Sometimes you can buy 500 bulk MFC(or ECP/SEC) there.
And they only cost like 1 cap per shot. Bulk ammo is your friend. it's cheap and get's the job done in *most* situations.
When it is getting too hot, switch to optimized MFCs.
In short, having enough microfusioncells to be able to use the Tri-Beam Laser effectively against high DT opponents is just NOT very likely at all until endgame. This means this weapon can't be relied on to take on every kind of enemy until end-game.
You have to be extremely wasteful on ammo and very lazy on re-supplying to make such a scenario come true.
So of all of those "good" weapons, there's really only two that I would say you can COMPLETELY rely on, which is pretty bad. If you were to ask me what you can rely on under the guns category? Medicine Stick, Trail Carbine, Sniper Rifle (and variants), LMG, Bozar, Survivalist's Rifle, etc etc etc etc etc.
"All of the good weapons"?
Ever used Cleansing Flame? with Pyromaniac eventually? I bet not.
What about Q-35? Very efficient, and with Better Criticals extremely powerful
The Laser RCW is a gorgeous weapon to deal with Cazadors and Nightstalkers
Pew-Pew is an Alien Blaster in Laser disguise.
The Tesla Beaton Prototype? I guess you've never tried that one, too.
The LAERs are amazing damage dealers in all situations.
The Hyperbreeder Alpha is wicked and does not need any ammo at all.
AER14 is incredibly versatile, you can clean out places like the Vertibird site or Gypsum with it from like 10 miles away, at distances where a Brush Gun wouldn't be accurate enough.
On such long ranges, projectile speed also becomes a matter. You have to factor that in when using a conventional gun.
With a Laser, it doesn't matter. You point at a moving target, you hit. It's quite a bit easier to hit things with a Laser at distances.
Your view is a bit narrowed on ammo consumption. There's more into it when it comes to judging a weapon, beyond pure statistics.
Yes you're right, when it gets to Jack-of-all-trades you better look into gunpowder weapons, such as Gobi or All-American.
But who's running around with only one gun?
I usually adjust my weapon loadout according to my actual needs. There's a weapon to each moment.
THAT'S why there's complaints about energy weapons. Yes the examples I gave in the original post are nice, but this is end-game I'm talking about. Before I completed the Lonesome Road, they were far inferior to what they are now. So faced with that reality, why use them instead of going Grunt or Cowboy?
Because they are fun? Because it doesn't matter? Because usually you should have thousands over thousands of rounds of all types of ammo by end game?
Because Laser Commander or Meltdown(that one actually is so overpowered, it's not even funny) can keep up easily?
Just play around with them a bit longer, get familiar with the EW perks, and you'll see they aren't as useless as you picture them right now.