The four-ring ring-binder
There may be good uses for four-ring ring-binders, but hearing bundles in four-ring binders are a pain. It’s not that there’s anything inherently wrong with the two extra holes – it’s just that it so happens that there are far more 2-hole hole punches knocking around employment tribunals and lawyers’ offices than 4-hole hole punches. If you have a 4-hole bundle to which extra pages need to be added during the hearing, either they have to be forced onto the rings so that they don’t fit properly and won’t turn smoothly, or else someone has to scrabble around hunting for the elusive 4-hole hole punch.
So just use a standard 2-hole binder like everyone else, ok?
On the other hand, 4-hole hole punches are a good thing.
The two center holes are in the same place as in 2-hole binders, so your pages will fit in any binder. And the top hole is in, more or less, the right place for a single treasury tag to be used to hold documents together at the top left-hand corner.