Hello and welcome.
Honestly you will get the most reward and stick with the martial art you enjoy the most. Training should be enjoyable, not something you have to do.
Life is short. Do something because you enjoy it. Go to both classes, see which class you enjoy most. All other thnigs being equal (such as price, distance for you to travel) go with the class you enjoy.
"Let your food be your medicine, and your medicine be your food"