what is the best crease for door hinges etc?

Grease  even 

I like a spray on white lithium grease; others will suggest copper grease, or even a conventional "LM".

With spray on on grease is best for door hinges, as it designed for this particular job, you can also use iot for the locks as well.

Keep Copper Grease for its correct applications and not where you are going to have a messy looking hinge area.