Better to fax or email resumes?

Do you think it makes a difference? When you email your resumes do you attach all of your credentials? Seems like it would be a pain in the ass for employers to open them all and sort thru them. Is faxing better? What do you think is the most effective way to get your paper seen? Do you call first when seeking maritime employment? Or only do a follow up call. How long between the application submission and the follow up call? Thanks.

I know the last 2 jobs I’ve had they prefer email to fax but will take either. Email is just faster, easier, and if they have a smartphone they can revisit it any time anywhere.