what to do against 4-2-3-1

[SuperDunk]

So I play against this:
_DR__DC_DC__DR___
_____DMC__DMC_____
______________________
___AMC_AMC_AMC___
__________ST__________

3-5-2(on flanks),or 4-2-2-2 hex(on flanks),4-3-3(on middle)...