Saxon Genitive in Naming Conventions?

I use the second. It sounds good to me. Think of "Task Priority" as a compound word like "vacuum cleaner".

I find that numbers two and three sound fine to me, and are descriptive. I use the second option. The first option could possibly be confusing since it seems to indicate that it operates on a collection rather than a single item (Tasks instead of Task, for instance).

I was not, however, aware that I was doing Saxon genitive programming; I'll add that to my resume immediately.