It's a good video I'll give ENB that, but I have to say that I'm a bit dissapointed that he didn't mention a lot of Dex weapons.
Scythe, Gargoyle Tail Axe, Flamberge and more just aren't there.
Flamberge is a VERY good weapon, so I wonder why it got skipped. Same to rapiers, he only mentioned Ricard's. Where's the rest?
It also seems that the video is purely PvE oriented, because when it comes to PvP a lot of the things change.
For example, he said that Chaos Blade's extra damage isn't worth the 20 HP damage on hit. That's true for PvE, but in PvP it's exactly that extra damage that makes it good. Not to mention higher Bleed build up, longer range and misleading swing arc, thanks to it being slightly more curved than other katana.
Well, I do agree that Great Scythe is a good weapon. Range, power, speed, bleed, buffable. It has it all. Although it requires space and eats Stamina like a hungry Adjudicator, it's still awesome. One of the best weapons no doubt.