Darkraider

I have a number of questions regarding Antitrust's DW build. 1) As far as resistances, what would be the best? (eg all arcane,all poison,ect). 2) For gear, should I concentrate on armor or on what bonuses it comes with? 3) Since a seraphim can't unlock the bonuses on halfted weapons, does it matter to me or not? 4) For Combat Arts, where should I be putting the points towards (eg how many runes to memorize for each)? Thanks for taking the time to answer and helping me to understand the game better.