Seems there are a number of qlikview advocates in here :o
Tableau is my choice. Qlikview just has yet to impress me with its visualization capabilities. I’ve personally not come across a dataset I couldn’t handle either, as I know others have stated that was their biggest issue.
I think that Gartner chose Tableau as the winner not only because the tool is currently the leader in the space but that the roadmap is equally impressive, especially if you work with geolocation in your datasets.