i like throwing older balls sometimes and thought i might get a NOS ball and see how it does. so which of the following is the best for the price.

brunswick blast zone: $125
morich levrg response: $100
ebonite tomahawk high torque bomb: $135
Brunswick International Zone Red Alert Proedition 2009 Plazma: $120

oh I want that tomahawk

I guess it depends on the condition you plan on using them on.

I'm partial to the Red Alert. It's a decent price, with good consistent performance.

I just went back and read the specs on the blast zone.   Asymetric, with activator hybrid shell.  Never threw one, but specs are very close to my all time favorite Vapor Zone. 

As others have said, it really depends on your game and what you want to use it for. That being said, just based on the quality of the balls themselves, I'd rank them in this order: Tomahawk (I had the Low-torque and LOVED it!); Blast Zone; International Zone; LevRg Response. I'm basing that off of what I threw and/or saw thrown out of those.

Blast Zone on short oil would be the bomb!