No one type of microphone is best for all situations.
Microphones vary widely in size, shape, sound quality, acoustic characteristics and other details.
In some situations it may be necessary to conceal the microphone, in others this is unimportant, or even undesirable. Personal preferences are also important. Performers and presenters may greatly prefer one type or model of microphone over others. The time spent making the right choice will pay off every time the wireless system is used. The first decision is whether to use a handheld transmitter or a body-pack transmitter.