I would go for a AMR/AML. So you can chose 4-1-2N-1-2 if the opponent is weak at the center and the 4-5V-1 if the opponent is weak at the flanks. A third strong MC is another buy besides a AMR/AML I can suggest, so you can go to 4-3N-AMC-2ST or 4-3N-2W-1, if your opponent has no AMC and you want to go very offensive.