Originally Posted By: {Cartouche}
Actually, now I'm thinking that maybe the ideal system would be a hybrid. The real weakness of the zone system is that you know exactly how large each area is because it will be zone-sized. If some "zones" were several areas, there would be more of a sense of real surprise and exploration.
When you say this, I'm picturing something quite like the later Geneforge games, actually. Although the game had zone divisions, some zones had larger dimensions than others, and some also had different levels that could be reached (e.g. through a trapdoor or a pit in the ground) that didn't show up on the overview map.
I personally really like the Geneforge system, because it makes exploring every last square of the minimap less tedious; all the 'no encounter' sections have effectively been removed, so I'm less likely to spend a lot of time exploring places that are of no value.