I wouldn't recommend going with mo/n, since they nerfed OoB to the point of being questionable. Mo/me offers the absolute most and best skills relating to energy management. being mes secondary offers you other helpful things as well, such as defensive skills (ie. mantras) and hex removals.
For your first monk I'd most definitely recommend mes secondary, as if you want to change to /w or /n for farming later on you can with no problem. This is especially useful since you don't get the elites in question (SS or OoB) until late in the game. With Mo/me you can use the inspiration skills throughout the game to aid your energy pool.
Warrior seconary isn't really useful at all in PvE, unless you're farming. There aren't really many skills in the warrior line that will help you in parties, and the only one people usually use in farming is Bonettis defense. You wouldn't want to use that when normally monking, since it forces you to get hit, and you don't want to ever get hit.