I did this last week and it proved 100% accurate. I subtracted the Dislikes from the Likes to figure out who would be in the bottom 2.
Youtube Stats at 5pm
Craig 19,825 views 239 likes, 174 dislikes (Adjusted 65)
Janet 30,122 views 1,016 likes, 148 dislikes (Adjusted 868)
Amelia 25,944 views 529 likes, 99 dislikes (Adjusted 430)
Misha 27,148 views 625 likes, 257 dislikes (Adjusted 368)
Little Mix 39,448 views 1,445 likes 66 dislikes (Adjusted 1379)
Marcus 24,017 views 421 likes, 128 dislikes (Adjusted 293)
Looks like Craig and Marcus in the bottom 2 but Misha isn't far ahead of Marcus so my be close call!