Lae'zel is better as a Battlemaster 6/ paladion 6 Oath of vengeance . Makes sense if you follow her to the creche. GWM + smites , No feats lost, Disarm for grabbing weapons, trip for (advantage of GWM+smites) and Riposte, all the other paladin goodies, +2 saving throws for gravy.
I used the Soulbreaker greatsword(Stun for advantage) chapter 2 until the silver sword GS in chapter 3 Both of these are thematic , Gauntlets of Hill Giant Strength 23 strength in chapter 3 Respec and dump strength once you have these put into charisma
(I also play with modded difficulty ,
Tactician plus Lethal AI everything else is stock besides a few visual mods that it.)