I have always shot split finger. I used a glove for the first fifteen years just because that is what I started out with. A tab didn't feel right when I tried it at first, although I could shoot with it.
I switched to a tab a few years ago and now shoot well with it. I have one that was custom made for me that is thicker and shaped to my hand. Hated getting blisters on my fingers from shooting.
The main reason I decided to switch was I got tired of having to figure our how to use a shooting glove and a cold weather glove at the same time. I didn't like having to use one shooting glove in warm weather and then a larger one to fit over a wool glove liner in the cold weather. With a tab I can wear it on my hand or wear it over a cold weather glove just by adjusting the loop that goes over my finger.
Like others have said, just use the one that works best for you. It really doesn't matter what you use as long as it works and you shoot well and true.