I voted for none, but I'm not averse to a graticule for some purposes. Hex is just too unnatural for a map in my opinion; it just kind of shouts, "game map," to me(although I might use hex for an alien map). Staggered squares is just poor man's hex.

After doing miniature gaming for awhile, I don't find the use of rulers(or protractors or even retroactive encabulators) to be excessively onerous, although I find I prefer to let the computer work out line of sight.