Below are the 10 most common attacks, male on male, taken from police figures, witness statements etc for UK and Europe.
These are listed in frequency order.
Given that the most common form of attack is a straight push to the chest it makes sense to begin training in bunkai against something like that kind of attack. Obviously you must also take all the other most likely attacks into consideration and train against them.
In the 1970s in Tokyo we certainly trained against all kinds of attacks, straight and curved, long range and short range, from the front, sides and behind, with grabs and without grabs.
Chief Instructor OTGKA