Practically all units have good uses. If you do not know how to use unit or never run in situation when you need unit, it is your problem.
I thought that was the point of threads like this: to get other players to point out uses for units you may not have considered before. And just because there have been similar threads before, doesn't mean there won't be new ideas explored here.

. Depending on my start I always tech either AH or BW very early if not first thing. 95% of the time my warriors do the job until either Chariots or Axemen are hooked up. I prefer to pick up both hunting and archery from alphabet and usually won't garisson defensive units until longbows are available. Mansu being the exception