Beat the story final boss now too, it was a very comfortable fight with lance, as most things are. Just sit there and poke 'n parry. Vaal Hazak was a pain tho, next time im bringing some kind of resistance to his bs. Kushala Daora is bae tho, probably my fav. I would hope they add Tigrex or some other iconic monsters, so much potential.
Lol, it was completely opposite for me. I guess it's a matter of what weapon you use but:
Kushala Daora - probably the most annoying, unfun fight ever. Not even difficult, just super frustrating as SnS. I didn't have flash pods either so the fight lasted fucking 45 minutes solo. Every time I got close to Daora I got staggered by wind aura for a few sec, the most I could get in were 2 hits before I got knocked back, or it flew away leaving a massive tornado and then remained in the air for 5 minutes. Horribly designed fight, imo.
Vaal Hazak - Easiest one for me by far. As long as you have some nullberry he barely does anything, his attacks are slow and have fair hitboxes and are easy to dodge.
Teostra - The hardest of the ending Elder Dragon bunch imo (not counting Nerg/Kirin), lots of stuff you gotta be careful of, so many explosions kinda like Bagel goose on steroids. That's disregarding that all the fucking particle effects cause your (good) PC to dip to 30 fps midfight.
Xeno'jiiva - Kinda easy too, visually coolest fight for me. Slow and super projected attacks that are easy to dodge. Most of the time is spent chasing his legs because the guy is huge and when he turns you gotta run for a minute to reach him again. Also seems like he has a massive healthpool so the fight takes a while.
By far the hardest monsters right now are imo Diablos and Nergigante.
I can't wait for all the DLC fights though, especially Behemoth from FFXIV. As someone who has played FFXIV a lot and fought Behemoth there I'm so excited. They pretty much ported it 100% from FFXIV to MHW, including boss mechanics, music, end quest text and even the damage display is the same lol (! for crits and attack name displayed besides it). They even added the Extreme (hardmode) version of it recently.