Mopinion is leading in Top 100K Sites and Top 1M Sites.
Mopinion has better usage coverage in more websites categories. Including Business & Industry, Autos & Vehicles, Finance, Financial Management and 18 other categories.
Slashdot Widget is leading in Internet & Telecom, People & Society, Shopping, Clothing and 4 other categories.
Mopinion is leading in most countries, including Netherlands, United States, France, Germany and 4 other countries.
Slashdot Widget is leading in United Kingdom.