As we generally play our halves split, Sneyd being on the left and whoever on the right, shouldn't we be looking for a well-rounded half that's neither one thing or the other, but does everything to a decent standard?
If our halves played predominantly as first & 2nd receiver, then we'd be looking more to halves which compliment each other (e.g. a 'running' half with an 'organising' half).