Is there a way to compare tags to see which one has a higher number of people who've added a tag to their "Interesting Tags" list? Often, when asking a question, I want as many eye-balls on it as possible, and hopefully the right ones. But if I use a tag that doesn't have a higher subscription rate, my fear is that it won't get the right people to look at it.
So, for example, of the tags gdi and gdi+, an answer from either will usually work, but by putting in both tags, I'm now left with just three to further meta the question. If nobody or very few people are subscribing to gdi, I'd rather not waste the tag by putting that in also when I could use the other tags to get more of the right eyeballs on the question.
EDIT: This is not a question about looking up any one person's tags - just an aggregate or comparative number or something that will help lead me to a better tag if one exists.