Can't remember Science really hating Anthony that much, I think he thought he was a bit of a sheep more than hating him and he never nominated him. I know he hated Craig and Derek more for the most part. They also sometimes think differently when out of the house, take for example Shabby who wanted Ben to win after she walked, she wasn't exactly his best friend in BB11.
I do think Kinga would've voted for Eugene though, she had a lot of time for him and was very protective towards him.
I understand what you say about Marcus, Siavash and Freddie aka "The Three Amigo's"
, but Marcus definitely had some issues with Siavash and in the house he said he wanted Charlie to win
and Rodrigo in the final if I remember correctly. I definitely can't remembering him ever saying he wanted Siavash to win, so I really wouldn't have been suprised if he voted for the vile Sophie.