The Crit Halberdier Champion Full Fighter Baldur's Gate 3 Build Step by Step Guide [BG3]

sorry to say but this build really not effective
in this game we can't find any Halberd with crit benefit, also fighter don't have anything for advantage attack roll like Barbarian or Rouge that make you hard to roll crit ever you have -1 crit roll items
if you really want Crit build multiclass to Barbarian still can do better combine with x4 -1 crit rolls items when use Reckless attack you should have 40-50% chance to crit
also if you really want to use Halberd, forget crit build Battle-master can fit with role better
Fighter lv12 can have 4 feats with IAS, Heavy armour mastery/Athlete, Polearm mastery and Sentinel you can be the best frontline for you team combine with 2 extra attack as Lv 11 you really don't need GWM

Do you play these builds starting from level 1? Which do you enjoy playing more between the ranger polearm bulld with horde breaker and whirlwind or this one?