It really depends on the game mode/map for me. For example at Walleye Warehouse I'll ink up one side of the base and continue to the side corridor, because by the time I leave it, I'm at the middle with a fully charged Inkstrike or Killer Wail ready to secure an early lead. This works for me both in Turf War and Splat Zones on this map.
With, say, Turf War at Saltspray Rig, it's much more important to head out and secure the large areas as soon as possible before worrying about the walkways near our base.
It's dependent on the map, the mode and the people you're playing with/against in my opinion.
I do like staying behind in base a good bit in Turf War regardless so I can get my special meter charged in just a few seconds, though. >_>