I have posted the same question before. In my short time as a Trad Archer the only thing I learned about release aids is: This is one of the most personal choices people make.
The only comfort you get is that people have success with either or both. So, buy one of each, a tab and a glove, properly fitted to your hand and give them both an honest try. Your instincts and results will tell you everything you need to know. I went from glove to tab to glove again. Why? My first glove was not proper for my hand. For me, a properly sized glove works better than a properly sized tab. I have 3 gloves and about 6 different tabs all necessary steps in my conclusion that my big shot glove is best for me.
Good Luck!