Everything depends on the facts, the evidence and the quality of the evidence. It is therefore difficult to presume a verdict or the outcome of a trial, because if a small part of the evidence changes, the verdict could change. It really is a calculation that has to be done at each trial based on the evidence presented and its quality.
We think it is very rare for someone to be able to prove that they were in a state of extreme intoxication, without the Crown being able to establish the risk of finding oneself in a similar state or committing a violent act against the people present.