As a pioneer in this field, bitcoin has the advantage of first-mover advantage. I think it's just the first brand of encryption, and that's why it's a market leader. In my heart bitcoin is always the first. 
A "pioneer"? Wow, that is a big word. You are a pioneer with a low rank account, then I can safely assume that you have a lot of friends here now. That is great for a "pioneer" at this field. Bitcoin is number one because it is the first one, that is all to it.