To illustrate the wide variety of grips, here are some examples from the pros. Note that the grip, as written above, also partly results from the preferred barrel shape, and vice versa:

• Pencil - Phil Taylor: Phil holds the dart in the common pencil grip. This grip is as good or as bad as any other one, as long as you can keep the dart pointing forward and not too much to the side. Of the basic grip variations, the pencil grip is the second most common. It usually requires a thin cylindrical barrel, as used by Phil.
  
  
• Wide open hand - Dennis Priestley: Dennis used to keep his fingers in a nearly vertical shape and provide all the necessary stabilisation by his thumb alone. He has closed his hand a bit more now, but he is still the pro with the most open hand grip. The grip looks very loose, a good advantage when it comes to exact release, but also a good chance to lose control in accelerating. How he maintains his touch with this grip is a wonder to many and it seems only to be known by him - if you have a go yourself you will probably have difficulty in hitting the board. He is either naturally gifted with it, or he has worked on it for years. A grip on the extreme side. Dennis uses a thicker, more ton shaped barrel, somewhere between Phil Taylor and John Lowe.
  
  
• Small finger on the tip - Eric Bristow: Eric in his brilliant years used long cylindrical barrels and kept his small finger wide away from the others, touching the tip of the dart. His grip is one variation of the basic grip, not the best, not the worst. Although less talented players might struggle with it.
  
  
• Three fingers - John Lowe; John uses a ton shaped rather thick and short dart, so the 3 finger grip develops naturally because more fingers hardly find the space to touch the barrel. Should be considered as a standard grip for this kind of dart.
  
  
• Small finger spread away - Rod Harrington: Rod uses a long thin barrel, as it becomes more and more usual when the standards and accuracy of the game improve (you are more likely to fit three thin barrels in the treble than three fat ones). He uses the basic grip and spreads his small finger away vertically, while the others touch the barrel. A grip that seems very logical.
  
  
• Holding the dart on the front end - Bob Anderson: Bob holds the dart way before the centre of gravity, just a bit behind the tip. This is unusual, as most players will struggle to develop a good touch when doing this. Bob 'pulls' the dart more than he throws it with lots of wrist action. His overall throw is faster than most others are and it actually seems as if he permanently is in a hurry. He uses a pencil-derived grip that seems logical with this extreme technique, and a pretty long cylindrical barrel. Not the grip to recommend, but a sophisticated technique for a man who throws a very dynamic dart.

In summery, you simply have to find your own grip. Anything is good as long as it meets the requirements specified and you can handle it well. Don't simply copy other players. Work it out on your own. You can of course try grips of different people for curiosity, to compare and find out which parts of it could fit you, or to learn about technical connections and improve your knowledge on this. But you are an individual, and grips are as individual as people. Don't get used to the habit of trying to find your 'weekly new and revolutionary grip.' Try for a while, find a suitable one and then practice and use it.