Well, you have them listed in lowest to highest price order and the Grizzly is almost twice as expensive as the PC.
I have the PC bandsaw. I added a riser block to expand its capacity. The riser block was the made by Jet and that tells me that like a lot of tools today they were both probably made in the same factory. I also added bearing blade guides and a good fence.
If money wasn't an overriding consideration I'd probably go with the Grizzly though. It comes with a decent looking fence. The miter gauge looks quite a bit better than what I have. It already has ball bearing blade guides. It has a blade tension release lever.
By the time you add all that stuff to the PC you have almost as much invested. Do that to the Jet, you have more invested.
So, the choice is, pay less today and over time add all the features or pony up the money for the Grizzly today and have the features right away.
Knowing what I know now, I'd just go straight for the Grizzly.
OTOH, now that I've added all that stuff to my PC there's no real reason to replace it with the Grizzly. At least not yet.