Now use HBG and watch things melt before your ridiculous DPS.
I thought I'd rank what I personally think are the hardest monsters in the game. Mostly cause I'm bored. So, this is after... 1000 hunts or so.
1. GQ140 Apex Rajang - Fuck this guy. I hate him. I'm pretty sure fighting him involves memorizing his patterns or whatever but for the life of me I can't bloody fight him. I have a specialized 100% anti-Rajang set just for him that counters everything he does and I still die half the time to this massive asshole. I've also killed 40 Rajangs and have no problems until this GQ140 Apex Rajang shows his face. Hate him so much. The fact that he's the best source for Apex gem L is the worst part.
2. GQ140 Apex Deviljho - Hoooooleee shittttt. Infinity HP combined with that stupid Apex bouncing shit and the fact that every single one of his attacks can OHKO. He's actually not too bad once you get the hang of it simply because he's pretty slow. I think trying to fight this guy without a shield or evasion+3 is suicide though. Also need tremor res or you'll spend the entire fight stunned. To give an idea how long it takes to kill him, the only time I've managed to beat him it took 12 - 18 wyvernfires, two sleepbombs, one paralysis, two mounts, four poisons, two pitfall traps, and two stun traps. We knocked it out of Apex 7 times. SEVEN. The group was two gunlances, my blast charge blade, and a LBG. It takes forever.
3. GQ140 S. Magala - I swear to god the only reason I have this guy lower than Apex Jho is because he doesn't take an hour to kill. Fighting this guy is crazy. It's like explosion central, next exit explosion alley. Everything explodes. And unlike the other Magala fights, there's no delay between multiple explosions. So he can trololol triple blow you up and instacart you. Many times when fighting him I just want to cry in a corner.
4. Super Ukanlos - Fuck. This. Guy. I bet everyone who goes into this fight is like "meh, it's just another Ukanlos." Ha... ha... ha...
5. Rusted Kushala Daora - This guy isn't really hard so much as he is frustrating. I think he's just so bloody annoying to fight. He spends the entire fight flying around at hypersonic speed shooting one hit kill blasts. Then all your attacks constantly bounce off him if you actually can hit him. Oh, and if you don't poison him, good luck trying to hit him at all. I don't know if there's a GQ140 version but if there is it's probably super ass.
6. Shah Dalamadur - Uuuuuughhhh.... I hate this boss. I hate the fact that you need to fight him solo so you actually have a chance to mine his asteroids. I hate that in the final 30% hp, he will spam super asteroids nonstop. You can easily spend 1/2 hour fighting him only to get triple carted at the final 5 minutes of the fight. 60% of the random hunts I've joined ended like that cause his final mode is so lame.
7. GQ140 Yian Garuga - I swear to god this thing has no business being this bloody strong. Why is he so strong?! Why does he have so many moves with no delay? Poison, fire, wind, roars. I think the Chameleos armor was invented solely for this guy.
8. Savage Deviljho - Sometimes I honestly think this guy is stronger than regular Apex Deviljho. Normal Apex Jho can't actually kill me. Savage Jho totally does. He kills me all the time. I don't even know why. The worst part is that right now you can only fight him in rare expeditions, which makes farming him really annoying.
9. Frenzied Brachydios - I don't like fighting this guy. He's way too fast and he constantly homes in on you. Thank god the chaotic version is super easy.
10. Renoplos - Fuck him so much.