What are the things that you consider when deciding the size of a pre flop raise and how do they influence it.


Here are the things I know of, correct me and add to the list if you would please.

How strong your cards are (obviously) - The better the higher the raise.
Your position - the earlier the lower the raise. (why is that?)
Your opponents – If trying to isolate, what size raise will fold out the # of people I am hoping to fold. If trying to feed the pot, what raise is callable by the # of people I want in the pot.

What considerations are added when facing a raise from an earlier position?