The typical WRPG tends to have more emphasis on building an interesting, plausible world, while the JRPG tends to focus on the stories of the party members, with the world being barely more than a Story Hallway for the characters to run down as they talk about their feelings. Your average town in a JRPG is an item shop, an armor shop, a weapon shop, and a few places to trigger cutscenes for your party to talk to each other, and you visit it exactly once as you run down the Story Hallway. Often, the town itself is laid out like a hallway. There's little attempt at all to give it a meaningful sense of place. As computers have gotten more powerful, JRPGs have put more resources into elaborately rendering their main characters, particularly during cutscenes, while WRPGs have gone for bigger and more dynamic open worlds. Skyrim may not have any characters with stories as detailed as Tidus, but FFX doesn't have anywhere as interesting to visit as Whiterun.