Its a personal pref thing BUT I can give you the best advice that I have noticed in my armies. If you are going double choppas, it's debatable what is best between reg orcs and savage orcs. Let me cover the pros and cons with that aspect for ya.
2 points cheaper then savages and quantity is a quality all on its own.
Not being frenzied makes you a lot less susceptible to being led around, thus prevent redirection and flank charges (which I feel is pretty easy to do against said units) and you can also flee from said charges!
you only get 1 attack for supporting attacks so the extra frenzied ones are wasted
savage orcs have more attacks
6++ ward stays with them no matter what compared to armor
can be broken by terror and fear can hurt you
As for spears, I think it's a okay choice if you are doing a huge unit of 60 dudes (in horde) so you have 40 str 4 attacks in the first round. I wouldn't advise shields so they stay cheap, thus doing the beastmen thing and letting that toug 4 be your armor.
Hand weapon and shield is the best/second best option you can have for them as regular boys are cheap and a 5 wide to hold units up with the whole toug 4, 5+ save, and 6++ ward.