I voted 1. We rarely have multiple combat encounters per day, and often have some overland travel. In our D&D 5 Eberron campaign, we regularly were off on lightning rail or airship and travel for a while (a lot less then if we would be on foot or horse) providing easy opportunity for resting, and the destinations usually weren't long dungeon delves with countless of monsters that could replenish every day, or princesses being sacrificed on some altar if we don't get there in time.
In my 4E Knights of the Silver Dawn campaign, I also had only a few encounters per day, with travel between locations. At some point the group even got an airship they could use for safe travel, but even without, I was never fond of doing random encounters, nor of long dungeon delves. I really prefer to have more story elements in my game then just rushing from combat to combat. (But when I get to combat, I like tactical depth.)
EDIT: However, since it's 4E, and it works with any length of adventuring day, I tended to pile up on enemies. Still, the players always managed, so I guess it was still easy. Or they're that good.
In our Pathfinder game, we're hexcrawling the world, and while there are random encounters, there is rarely more than one per hex, and you always end up taking Pathfinders version of a long rest.