>Hi All,
>
>I see there is two main way if I want to develop multi-OS apps with VS C# + Xamarin + XAML or JS + Cordova (or Cordova's child Phonegap) HTML5. I read a lot of articles all of them says which you know select it. It not fits with my situation. I don't know both of them. I don't like C# syntax. There are a lot of symbols. I remember I read a C# book years ago sample there was a usage like < T > . I don't like this. I prefer words. Also I don't like call sub-routines like web site. Also I don like either XAML or HTML5... :)
>
>Anyway, most important thing is not what I like. What is better for me; which is eaiser, which is better. C#? JS? Xamarin? Cordova? XAML? HTML5? I want to develop both Windows, Android and IOS at VS. I don't think Windows Mobile at this time. Because Windows Mobile 8 is not popular for handheld devices at Turkey, Windows CE and Android are popular. I know IOS devices are not handheld devices buth however they use iPads for our business type (mostly POS and Restaurant POS).

The answer may depend partly on the type of app you want to develop. Although a browser based app is never going to look quite as 'slick' as a device specific one it's possible (with for e.g. bootstrap/angular) to do a reasonable job - and cover a wider variety of client devices. You'll need javascript - but, if you use node.js for the backend, then that's all you'll need.

Xamarin is a bit pricy - currently $83 per month per platform.

C# syntax is not as hard as you may think (esp. compared to C++ :-}). On a side note the < T > usage is merely a convention - you can use anything you like (and guidelines suggest using a more descriptive name). IAC, most developers probably never write custom generic classes.....