HTMLJavaScript vs XAMLC# Metro Apps which one i choose

Question

Hi everyone .. im working on a BI project so i did creat an asp mvc4 Dashboard using DataViz Kendo UI ..after finishing it i'm about to build the same dashboard for the windows 8 Metro app but as everyone know there is "HTMLJavaScript Metro Apps" and " XAMLC# Metro Apps" so my probleme come here .. which one i should choose ... if anyone could help me i would greatly appreciate it and thanks