In this time most of the currencies are here,so why i use Bitcoin? what you feel the different between Bitcoin and the other currencies?
in my opinion because bitcoin is huge price increase than other coin 
You are right. Bitcoin has a high price thats why we use bitcoin but other than that because of its popularity. We heard it then we try it. Also we use it because of fast transactions in sending and receiving bitcoin in just a second unlike other it needs an effort.