Does the order in which you list committee members in a dissertation matter?
Probably you are overthinking it. If they have different roles you can list them with their role and avoid ordering problems. Otherwise I'd consider alphabetical. 

I'll admit that in some fields there may be a tradition about how to do it, but I've never heard of that. And note that in some circles the one listed last is considered the most prominent. It is hard to really draw conclusions, hence alphabetical. 

And, your advisor might have some good advice about this.