Which evidence is always considered the best evidence?
Direct evidence is always considered the best because it does not require any reasoning or inference to arrive at the conclusion to be drawn from the evidence. An eyewitness account is direct evidence.
Hearsay is never admissible in court. This is when someone testifies they heard someone else say something they witnessed (also called second hand). Corroborative evidence is that which supports other evidence. For example, is someone testifies they saw it raining and another said they heard rain, that is considered corroborative evidence. Indirect evidence suggests but does not prove anything. For example, if a man is accused of gambling and has been seen with gamblers, that is indirect evidence.