I wouldn't say better - just different.

TBI:
* Intake charge is wet so cold start and warm up is just like a carb.
* Manifold determines distribution; therefore no individual cylinder control.
* Easy to install using non-EFI manifolds and most are self-tuning.
* Doesn't like dual-plane manifolds.
* Throttle body is as high as a carb.
* Can look like a carb and can be nicely hidden.
* Some TBI ECUs have issues with higher performance engines that have low idle vacuum.
* Some TBIs have trouble with ethanol in fuel, boost or nitrous.

Port:
* Sequential injection allows for individual cylinder AF control, but requires an EFI manifold.
* Dry manifold allows cold start and warm up control with no puddling.
* Allows any combination of throttle body configuration, single 4 barrel, 6-pack, 8-stack, turbo, any blower style, any fuel.
* Typical throttle body is just an air valve so it's shorter than a carb by about 1.5".
* Allows accurate "sizing" of injectors to engine displacement.
* ECUs can be tuned for any engine power lever and low vacuum - but most require some laptop tuning though all are self tuning once a base tune is established.
* Allows dry nitrous where additional fuel is added by the ECU.
* Easily recognizable as EFI. This may be a negative.