I changed my Champion to Samurai.
Fighter Samurai (lvl15)
STR 20 / DEX 10 / CON 16 / INT 10 / WIS 14 / CHA 12
Feats. HAM, GWM, Alert.
Skills. Athletics, Stealth, History, Insight, Perception, Persuasion.
For a Fighting Style I choose Defense. GWF is ok, but don't give you a better damage, just...