Provide television ratings. I don't give a shit about China since they will watch anything that involves a Chinese player. Basketball games featuring Yao Ming have pulled higher ratings in China alone than the average television ratings for a Champions League Final.
What can we conclude from this? Absolutely nothing. Anyhow, pool is just as popular in China as snooker. Ask Colin, who has actually been there, about it.
Also provide television ratings for darts viewership outside the UK.
What I take issue with is your idea that snooker's popularity (again, only in the UK) is the result of it being a better game than pool. So, snooker was a shitty game for 100 years, when Joe Davis was winning 6 pounds for the World Title and no one cared about it, and then it magically became a "good" game after Higgins' arrival on the scene?
And pool was a "good" game when Greenleaf and a young Mosconi would fill stadiums playing exhibitions and then became magically an uninteresting game after World War II, magically became a good game again after the release of the Hustler, magically became a bad game again in the 70's, magically became a good game again when Fats and Mosconi drew big numbers on TV, magically became a bad game again, then a good game again after the Color of Money, etc, etc?
You fail to understand how cultural trend plays a role in all of this, and cultural shifts in sports are usually driven by something outside of the sport (an engaging personality, a popular movie or TV show, etc). It has absolutely nothing to do with the intrinsic quality of the games in question.