Tien-Tsin HuangJ.P. MorganJ .P. Morgan’s Tien-Tsin Huang — the “best stock picker,” according to one buy-side enthusiast — captures second place for a fourth year running. Huang elevated Visa, a credit card transaction processor headquartered in San Francisco, to top pick in mid-January, at $100.78, as part of a broader belief in “stronger secular growth for the processors with less cyclical risks,” he explains. The stock had climbed 27.3 percent, to $128.25, by the end of August. Huang exhibits “deep understanding and insight into the companies’ earnings prospects,” according to one portfolio manager.