Farther than stars said:
1. I wanted to see which branch of the RPG was more popular, without wanting to start some sort of flame war
2. I classify sandboxes and shooters as more of a game mechanic, example, Fallout 3 has a sandbox world and first person shooting
3. Action-Adventure is that very weird hybrid genre, apparently some people use it, as evidenced by the fact that 17 people have voted for it (I guess they were voting for the likes of Drakes Uncharted and Lara Croft)
4. Some WRPG fans really don't like JRPGs, conversely some JRPG fans really don't like WRPGs, it was just my attempt at addressing that issue