I feel like Hexblade is more worth going straight 12 far more than it is dipping the majority of the time
Whenever someone asks for a Hexblade build on here, I frequently see people recommending Swashbuckler, Paladin, or Sorc dips. Lets go over what you're actually missing out on.
Dip 1 level - You lose Lifedrinker, a CHA to damage DRS and one of the best DRS sources in the game (in non-honor modes).
Dip 2 levels - You lose an extra spell slot and access to the (albeit not super great) mystic arcanum.
Dip 3 levels - You lose on Armour of Hexes, not a big deal.
Dip 4 levels - You're losing out on Level 5 spells, and Minions of Chaos, a huge power spike for a solo player.
You lose out on everything outlined above for what, a conditional bonus attack disarming strike? That's not even getting into how every level you dip is just delaying the next Hexblade level's power spike, with how loaded with features its 1-9 is can be pretty significant.
I can understand throwing in a level of hexblade on another build for the Hex weapon, but if you're gonna play majorly as a hexblade, I don't understand why you would dilute yourself.
TDLR: Hexblade is one of the best classes in the game pure, and you're diluting it significantly by taking dips.