this is a good match and i'd actually take ka-zar for a majority. he's a monster at times. wc has some great damage soak, and some very solid showings. he def has some skill, but he's more take a punch to give a punch. he's def not in the top tier of ma's on either side. i always place him in the same level as castle. he'll give almost anyone a hard time, but top tier guys are just too skilled for him to beat. he is a very cool character though.
I dont know Ka-Zar enough to actuallt comment on the battle.
As to where WC ranks in DCU H2H combatants. I'd say hes on tier 3 (ish).
Tier 1 is the like of Shiva, R Dragon, Batman, Bronze Tiger, Grayson/Nightwing, deathstroke, Cass Kane,
Tier 2 is your Black Canary, Question (Vic - after Dragon training), Conner Hawk, Catman, Tim Drake etc. Basically guys who can make a showing vs tier 1 but only win a few out of ten at best.
Tier 3 does the same to tier 2 as it does to 1 but should never take more than 1/10 from tier 1.
Hes supposed to be a master of Krav Maga, hapkido and Muay Thai (basically the arts heavily boxing/kick boxing focussed) plus Capoeira. Based PURELY on how his fights are drawn Capoeira seema to his prefered and dominant style.