Titleist is the golf ball that is used by the most professional golfers and is considered the best ball on the market. Other golf balls are very good too.
Personally, I prefer Titelist golf balls but Nike balls are good too. If you are an average golfer, you should use a ball with a harder shell. If you are looking for the best ball, I would use Titelist ProV1.
Some of the more well-known golf ball makers include Titleist, Callaway, Wilson, Taylor Made, Ping, and Slazenger. There are several different types with different weights, as well.
Many different golfers trust in all types of golf balls. Some of the best today would be the Nike PRO V 1s and the the titleyst, although it is all preference.