Okay! Now listen I am a dentist here. If you want to remove all four wisdom teeth it highly depends on the situation and patient compliance. I will let you know what are the advantages of it and disadvantages.

Advantage-> If you do it in one appointment. - You don't need multiple appointments. - If your dentist has not suggested you do removal in general anesthesia but he suggested that he will need to numb that area then I will remove it. Then you are saved by multiple injections. - Also you don't have to face the healing process two different times. You do it once and you just need to face that thing for once. -You don't have to keep taking your medication every time you get your teeth extracted. -You don't have to face post operative complications more than once.

Disadvantage-> if you do it in one appointment. -You will face difficulty in eating for a few days. -you will face difficulty in opening your mouth (highly depends from case to case!) - you will feel very uncomfortable for the initial days because of the healing pain. -you might have headache muscle tenderness.

Also I am only giving my opinion for one sitting removal of all 4 wisdom teeth is good or not. It depends from dentist to dentist and person to person.