Given the one picture you show, it is possible to improve tip appearance with both fillers or surgery. In my opinion, an open approach and sutures to improve your tip will be the best way to go. However, you do need to understand that most (if not all) of us are born with asymmetries and that is a natural thing. With surgery, we can try to correct theses asymmetries as much as possible, but there is always a chance that we can create new asymmetries that bother you.
Nothing done surgically is without some risk. You need to weigh the risks and benefits and decide if that is still something you want to do. Some patients feel that a filler is less risky for that reason. In addition, a filler (like Radiesse) is not permanent and is a good way to see if that is something you like. Speak frankly with a surgeon you trust and see which solution is better for your skin and for your postoperative "risk" comfort. Good luck.