It somewhat depends on what type of hunting you are planning on doing and how far away you are going to need to glass. If you hunt heavier cover and don't need to glass super far (less than 1.5 miles or so), I would probably go with a lower-powered bino and a good spotter to judge them and see if they are worth your time to hike to. If you hunt areas that have good, high vantage points where you can see 3-5 miles, I would go with a good pair of 15x binos as you will find that they are more comfortable to sit behind for longer amounts of time than a spotting scope because your eyes are less strained when you can look through both of them (I, however, definitely wouldn't go without at least a half-decent scope though because you still will need to tell if they are worth pursuing, but for longer glassing sessions, I opt for the binos every time).
I tend to glass lots of big, relatively-open areas, and I prefer covering the extra area with my 15x binos because they are just easier on my eyes for long periods of glassing than a spotter is. My current setup is the Vortex Viper HD 15x binos (highly recommend for the money) and the Zen-Ray 20-60x82 spotter (also very good for the money). I would ultimately think about what it is that you want to do and what type of terrain you want to do it in, and go from there.
As a side note, you will have to have a tripod for the 15x binos because it is a joke trying to look at anything with that much magnification without it being mounted on a good tripod. Also, if you get a spotter, I would go to a pharmacy and get an eye patch to cover your non-dominant eye because it is way easier than trying to squint it shut for hours on end and covering it with your hand can be problematic when it's really cold. The eye patch also allows your other eye to relax because you can leave them both open rather than contorting your face to keep the non-dominant eye closed.