The general principle that better information gathering, transmission, and processing capabilities improve a species chances for reproduction and survival would likely find general agreement. More precise and faster control over action is advantageous. More precise and more timely perceptual information helps.
Plants primarily use chemical processes for information transmission and processing. For animals, electrical processes seem to predominate.
For animals, the neuron is generally accepted as the 'wiring' component of biological information processing. Inter-species comparisons show how the neuron has become faster and more efficient.
The neuron is generally seen as the basic 'processing' component of biological information processing for animals. The chemical environment also plays a role, but primarily through its effect on the neural processing.
The senses, including proprioception, are the main sources of information. The muscles are the main destination of information.
The 'wiring' has to be able to handle the rate of information flow both from the sources and to the destinations (information sinks). The 'processing' has to handle the information processing required so that the muscles can perform the actions, and so that the perceptual information from the senses is transformed to guide and improve the action.