I get a cleaner release with a tab.It's not as easy to pluck the string with one finger using a tab. I also always have full use of my fingers with a tab on and you can put it over any glove in the winter.

My advice would be to try both and decide what works best for you before you get too use to either one. When you get use to either ,the other will just feel awkward. I used a glove when I first started shooting.