I have to say that you need to first indicate your software requirements. Then you need to try both of them and choose which one best suits your specific needs. Here are the benefits that I see:
Telerik Kendo UI for Angular 2:
- Server side rendering support
- Has a smaller library size
- May work faster in individual cases (without jQuery inside)
DevExpress DevExtreme for Angular 2:
- Significantly more components and features
- Fast delivery of new features (no additional resources to support ng2)
- Moreover, 250 demos for use with sample working code
PS DevExtreme for ng2 has jQuery removal in its roadmap. Thus, it will become faster and supports server-side rendering.
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