I don't know much about the tanabe or blitz but the Ark, injen and invidia are all great shouts in terms of quality and performance, much more so than the cobra you currently have.
In terms of sound I'd expect them to all be fairly similar (going by the size of the resonators), but I think the Ark has more of a unique sound due to the helmholtz chambers (which are also meant to reduce drone).
If loudness is one of your biggest concerns have you considered the miltek system? It's only slightly louder than oem so sounds a bit tame with oem cats but with the art pipes it might be a nice balance for you.
I've got the invidia gemini paired with HFCs and absolutely love it. The quality is fantastic, it sounds great and it's perfect volume for me.