abirdcall
(she/her)
The Hexblade is good but not as strong as some people think. When you factor in action economy it is not that crazy as it seems. the main benefit is it removes the "MAD penalty" of weapon based warlocks.
That isn't the main benefit. It is far stronger than any other patron for all types of Warlocks.
A Warlock can take Hexblade and not touch a single weapon.
Spell slots are precious. After level 5 Hex just isn't worth it anyway. It takes concentration and one of 2 spell slots. Not Super Hex. And you are barely giving up anything to get it.
The abilities of all the other patrons are minor.
Having a 19 AC is a huge difference from 14 AC. It's not even close. No other patron gives that much power. Look at the other abilities.
All of this against using your action for 1 round frighten. This is an action, not a bonus action, and your argument is that a bonus action costs too much.
The level 6 ability is a super familiar.
What are you comparing these abilities to? Other patrons use bonus actions and reactions for their powers. You are saying that a 50% chance of negating a hit is fluff but being immune to having your mind read isn't? That makes no sense. The former is a very strong mechanical effect. The latter will rarely ever come up in a campaign.
Attack rolls also have a large chance of failure, will you say those are worthless too?
Level 14 is largely inconsequential. The vast majority of campaigns will never get there and the ones that do will end up spending very little total campaign play time there.