How would you like an open data platform to be?

With the rise of open data, lots of open data portals appear here and there. The fact is that with more portals, it will be more and more difficult to find what you really want. In addition, if you want to work with data from different organizations, it becomes a little tricky.

So as a developer, how would you like the best open data platform to be ? Give us some thoughts.

Thanks