Unfortunately you cannot choose your editor, as they are assigned based on availability.
The editors are all trained equally, and are all familiar with different editing styles & techniques. What makes the biggest difference is the feedback provided to the editor, both written and visual, which helps hone in on your personal style.
We also have a highly qualified staff in charge of test runs, new client accounts, and quality control, which is heaviest for new clients joining us, to ensure we're guiding the editor in the right direction. All editors also keep client notes and presets up-to-date at all times.
We have found this approach to work best, instead of grouping editors with specific editing styles.