Currently there is no way one can create an ordered list of issues. All we have to work with regarding ordering are field values but what if i want to create an ordered list of 100 issues by priority for example ? The best i can do is group those 100 issues into 5 groups that correspond to the 5 priorities JIRA provided by default.

The practice of creating an ordered list of issue is most commonly used in Agile practices like SCRUM for creating a backlog but it can be used in other contexts too. I think JIRA should support this out-of-the-box.