GMR Twin Turbo or STS rear mount?

This is a completely hypothetical situation. I am looking for the turbo upgrade as in my previous posts. I am looking for some opinions though as to what you guys think would be better suited for my needs. I have the ambition of making a lot of power and torque. Really impressive numbers. But my car is not a daily driver. I only drive it once every other week, if that. I mostly take it to shows and i have the the future aspiration of taking it to the drag strip just to see what it would do and maybe get it dynoed at a car show. I am looking for the WOW factor. More show than go, but still a lot of go. So having said that, which turbo system do you think would be for me?
I hear the sts is good for a daily driver which would lead me to believe that its more suitable for street driving. However, i am looking to make high amounts of power. Even as much as the 700+ rwhp that GMR made with their twin turbo setup. Granted i wouldn't be driving around town with that much, but like i said, i'll actually use it when i go to a track or get it dynoed. I mean when it comes to the WOW factor, seeing a rear mount turbo or twin turbo Camaro will both impress people i think. Most never heard of the rear mount, and at least in my area, i don't know of any rear mounts nor twin turbos.
at this point i am really 50/50. Both have their pluses and minuses.

also, as far as the GMR kit, how street friendly do you guys think it would be at a low boost? I mean do you think it would be just as safe as the STS rear mount at low boost? And what do you guys think is better in terms of reliablity for the long run?
If i ever drive long distances on a highway,just wondering if one system would kill my engine quicker than the other.

FYI, i am taking all the necessary steps for making huge numbers safely. I am getting a new forged engine and trans and rear and all that other stuff.