Subscribers are loyal readers and be considered as the heart of our audience capability. This means that you can make valuable posts for them consistently and you are enjoying your blogging stability.
On the other hand, commenters are also your readers who you have convinced to share their ideas, suggestions, praises and even contradictions to your posts. It also means that you are sociable enough to have good communication with them.
If I have to choose only one of them, I would choose my commenters over my subscribers and here the reasons why.
1.0 Commenters are opening my blog which has a great potential of visiting my ads too.
2.0 Commenters are actually reading my posts and interested in talking to me.
3.0 I am also learning a lot of from them and sometimes visit their blogs too.
The only disadvantage I see is that you have to spend time reading them and more or less, leave a reply. It can be time consuming if you are having tons of them for every post.
So assuming that your subscriber counter is accurate and your commenters are posting valuable comments, which do you prefer to have many of them and why?