[gdal-dev] Recommended OGR Driver For Very Large Vector Data

[Even Rouault]

> I still prefer and use that to deliver, over the heavier GPK format.

Sizes of GeoPackage and Spatialite DBs should be very similar in most cases. 
They differ only by the geometry encoding, which in both cases is more or less 
a header + WKB or a variant of WKB. Spatialite DBs can be significantly 
smaller only if using compressed geometries (-lco COMPRESS_GEOM=YES)

-- 
Spatialys - Geospatial professional services
http://www.spatialys.com