your tests are flawed Texx. it's common sense/common math that haste definitely increases weapon procs (both PPM and PPH types). Crusader is a PPM enchant, which are figured on the base weapon speed, haste increases the calculated speed which means you get more hits in the same amount of time increasing proc chance.
the cloak enchant is the correct one for max dmg and survivabilty vs melee. only use resistance cloaks vs casters (which are few and far between in this bracket). even after 4.2 when agi will no longer give you dodge, it still beats the 70 armor option
edit: your bow comes from a horde quest, if you faction xfered, i get it, if not the Hand of Argus is the Ally version
slayer's band is horde too for that matter
Silver Embossed Boots are better than yours,