I find that discussing if a task is small, medium, or large works the best rather than numerical points that might get too granular. And as others pointed out,

I find that discussing if a task is small, medium, or large works the best rather than numerical points that might get too granular. And as others pointed out, the value is in the conversation it drives and being able to skim a list of tasks to get a rough feel for the scope of the project you're working on.