typhoone,
This thread is a pot stirrer If I've ever seen one ;-D
I look at it this way... The narrower the engines operating conditions are, the better the carburetor looks. The wider range of expected use, the better EFI looks.
For example, If you had a single cylinder engine, running a fixed rpm, fixed load, fixed temperature, fixed barometric pressure, fixed humidity, fixed fuel, etc, etc. Carb'd, it will likely make more power, more efficiently (if optimized, of course) than with EFI.
On the other hand, throw in a broad range of environmental conditions, altutude changes, extreme rpm ranges, load changes, turbo's and so on... the EFI will adapt to the conditions far better than a carb.
The larger the dynamic range of conditions subjected to the engine, the more EFI shines.
Either way, if you're serious, give it the due diligence it deserves...