Osage.
I have built bows of Yew, Oak, Vine Maple, various laminate combinations, etc. My Osage Flat Bow is the one I pick up for Elk, Deer, etc. It takes very little set even after a long day in the September woods. Shoots where I look. Has tolerable hand shock and decent arrow speed. But best of all it doesn't care if it rains, snows, sleets, freezes, or gets hotter than hades. Not the prettiest bow I have ever made, not the fastest. It just keeps on keeping on.
After 6 hunting seasons, a couple thousand arrows, and who knows how many 3-D shoots, this bow is looking a little ragged, (snakeskin backing is beginning to fray) but still shoots a 535grain arrow through my pro-chrono at 151fps 3shot average. Not bad for a 53# bow.
I guess what I am saying is
OSAGE.