Choosing a golf glove depends above all on your playing level and on the pressure exerted on the club by the hand when holding it. Next come considerations of comfort and breathability.
What to consider
The novice golfer will hold the club with his or her natural grip, and is advised to use a more resistant glove that will not wear out quickly = synthetic glove.
The regular golfer will have a lighter grip and will appreciate a glove that aids contact with the club = leather glove.
Choosing the right size of glove, and gloves make with stretch segments, will improve your comfort.
A glove that is aerated by perforations and sections in Lycra will give you increased breathability.