These are fairly different mods...I could understand dp vs. fmic or lowering springs vs. coilovers...
What exactly are you looking for? FMIC will be a great addition to the Cobb, you'll be able to switch to the much more aggressive Stage 2+FMIC maps. Not only will you get more power, but you'll consistently get more power.
Unless you track it, I doubt you will notice the full potential of coilovers. If it's purely cosmetic, you could just lower it with springs and get an ETS intercooler as well for the price of KW V2 coilovers. I personally switched from H&R Race to KW V1s because the drop was too aggressive and way too rough. The ride on the V1s is great, I noticed a huge difference in ride quality, but I really only got them because of a great local deal. KW V1s are great if you want to fine tune the height, V2 if you need more control over the characteristics of the handling.
But it ultimately comes down to why you think you need them and what your actual goal is.