bitcoin will control the virtual money market. If you look at the current market, every bitcoin change affects many other virtual currencies. The current market is very good and I wish it lasted.
The contribution of bitcoin is always big, and this will lead the market. Right now ethereum has gained good growth potential and has gained large usage around the real world increasing its market. This doesn't mean that it'll lead the market. Each and every asset is dependent on bitcoin, it can be of growth or some thing else. Until the dependence is there, bitcoin will head the market.