As long as they all have the same base malt (i.e. 2-row) used to make them, I say go with the lightest.
In extract brewing (especially if you are concerned with consistency), you should obtain color and specialty flavors from steeping grains. Not to bash anyone, and there are some very reputable malt extract companies out there, but you can never be exactly sure how they obtained color and flavor in those extracts.
perhaps a line of single hop IPA's - there's so many new hops out there!!!