My issue with Web Mercator as a projection to use online is that I think it gives people an unrealistic perception of space. Greenland looking massive is a good example.
One benefit of Web Mercator, with Leaflet etc, is the projection is endless in each horizontal direction, meaning it's OK for small and large screens alike.
I've looked at using Robinson in D3, but it's going to look too small on phone.
Is there a viable alternative for the web that doesn't use the Mercator projection, but doesn't look tiny on phone, as I'm thinking the Robinson/Eckert projections might do?