The answer is too personal for me to answer for anyone. But there are very good stocks at a very decent price (mostly made by Magpul, but there are others).
I aim to put some reviews of the many I have or use to have when I get time. In the meantime I can only say right now I am only using magpul and love all the different ones I have, to include the UBR, PRS, MOE, CTR and ACS.
If you are looking for something not many have, you can check out nokick.com - they have a couple interesting options that are supposed to reduce felt recoil.