Assuming that we will be getting a number of only slightly different "greenshirt" Joes, I agree that Grunt would be the most generic, and should thus be the first release. Once the more interesting looking guys start coming out, there would be less incentive to buy the more basic looking of the basic looking guys. Of course, with the popularity of this line being what it is (even selling out that lame-o Waypoint Station thing), the choice of figures released may not matter much at all.
And I should note that in the comic, Grunt had more personality than some of the other original Joes who didn't do much to distinguish themselves (like Grand Slam or Short Fuze). Grunt had a key role in the issue where he, Hawk, and Snake Eyes infiltrated the "militia" that planned on nuking the Soviet Union or whatever it was. In the cartoon, a good chunk of those guys didn't even have speaking lines that I know of.
And I should note that in the comic, Grunt had more personality than some of the other original Joes who didn't do much to distinguish themselves (like Grand Slam or Short Fuze). Grunt had a key role in the issue where he, Hawk, and Snake Eyes infiltrated the "militia" that planned on nuking the Soviet Union or whatever it was. In the cartoon, a good chunk of those guys didn't even have speaking lines that I know of.