FFXII did feel very massive, but it was also very linear. There ia a lot of similarities, but in the end they don't feel any thing alike. I wonder why that is. If you do everything within the game they are also both the longest games in the series too. No world map. Tons of annoying side quests that should com with a strong bottle of headache meds. XII worked a lot better for me than X did. I like X more now than when it first came out, but XII, even with its bland cast, is more enjoyable to me.