Oh hello tempy, I so love bones. You want to grab them signets, maybe something like this! http://intothemists.com/calc/?build=...0;2JF04JF045Bh aim to get deeps strieks first and change fury to stamina. Although I heard this loses its effectivness around 60, Im no theory crafter though. Longbow and greatsword are my choices...er were my choices I never got above lvl 40.
power precision crit like most classes really... if you really want to focus on something try searching for a guide/build online most leveling builds seem to be 5 signet builds since the signet heal is the best or something..
For leveling, I find 5 signets to be really fast. The idea is to slice through them before they can do anything much, and with 75% crit (currently level 40 and that is my crit chance). It's not very good against champions, hard veteran mobs, and big groups of 4+ with ranged, because they live long enough to destroy you, since you are really squishy. If you do go for 5 signets, power/precision is common.