I am building a paladin/sorcerer multiclass character that's focused on nova damage, using sorcerer spell slots to fuel Divine Smites. My current plan is something like Paladin 6/Sorcerer 14, in order to get the Aura of Protection.
I've been thinking about adding a level of warlock (hexblade) after Paladin 6 but before taking sorcerer levels. Because my STR is 16 and my CHA is 20 (lucky roll + ASI), the Hex Warrior feature would basically be an effective +2 weapon, and the spell slot, cantrips, and curse would be nice too. However, this level comes at the cost of delayed progression and eventual sorcerer levels.
Are there other pros or cons of this dip that I'm missing? Is it a good idea in general? An ideal answer would be from someone who's played a build like this, although I would also appreciate a detailed analysis of the two options. Additionally, since I'll be playing this character from early to late levels, it would be nice to have an analysis of intermediate levels, not just at level 20.