An update a bit before E3, since Nintendo posted brand new videos / Directs
2015
General Directs
Nintendo Direct - 1.14.15 - 885,081 - 10,860 likes / 551 dislikes
Nintendo Direct - 4.1.15 - 965,175 - 13,238 likes / 591 dislikes
Special Directs
Splatoon Direct - 5.7.15 - 657,412 - 9,645 likes / 227 dislikes
2015: other videos
Xenoblade Chronicles X Video Showcase 4.24.15 - 229,439 - 4,981 likes / 119 dislikes
2015: Treehouse
Live with Splatoon - 370,689 - 2,490 likes / 31 dislikes
Live with Xenoblade Chronicles X - 140,892 - 2,456 likes / 91 dislikes
Live with Splatoon Global Testfire - 123,744 - 2,553 likes / 82 dislikes
Live with the Splatoon Global Testfire - 90,873 - 1,181 likes / 46 dislikes
Also, a direct (sorry, no pun intended) comparison between this year's Pre-E3 video and past year's one
Play Nintendo 4.29.14 - 1,130,902 - 25,631 likes / 538 dislikes
Mega 64 infiltrates Nintendo - 154,531 - 6,069 likes / 108 dislikes
Total - 1,285,433 - 31,700 likes / 646 dislikes
Nintendo - Get Ready for E3 2015! 5.13.15 - 1,383,224 - 36,370 likes / 952 dislikes
Reggie goes for the gold (Nintendo E3 2015 Video) 5.14.15 - 69,056 - 3,617 likes / 50 dislikes
Total - 1,452,280 - 39,987 likes / 1,002 dislikes