Almost 7 years ago, working for a consultancy as their Qlik SME, I was tasked to create a BI platform-comparison with focus on Qlik.
Naturally, I Googled this and found a whole host of pre-made lists, most of which were all mentioning front-end things like "no waterfall in QlikView".
I was not satisfied with these lists, as the whole USP of Qlik, I think, is quite different and barely visible: the "data cloud", "symbolic representations", "associative data model" - call it what you want.
So I built a quick app to try and give business people a way of visualising and understanding this quasi-invisible aspect.
The attached 1-minute video is a super-quick reference to my full demo...
Thoughts?

THE Qlik USP in less than 60 seconds (vs all other BI platforms)