LI vs M47 for Dodge Dakota

I've read and searched the forum, and the consensus seems to be that LI is the best jammer currently, but I am finding it difficult to figure out whether a dual LI would be better than a 4xLED blinder M47 for this vehicle?

I am thinking that I should have protection in the rear also (I am in alberta, canada if that means anything to anybody), so I could be persuaded to put both (or all 4?) heads up front if that's what folks think is best ...

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At least you're in one of the enlightened provinces where CM's are allowed! Post a photo of your vehicle and members here will chime in with suggestions.