Rubin - a good shape, confident victory over Pari NN and a crushing success in the cup over Akron. Khimki are not impressive, have not won a single match, attack and defense at a low level. Rubin is definitely stronger, they will not give any chances at home, focus on a victory for Kazan team.
The Rubin vs. Khimki match promises to be high-scoring. Both teams demonstrate an open attacking style of play. Rubin had a disappointing match against Zenit, but scored 4 goals against Akron. Khimki is also not standing still, playing openly and showing good results against other opponents. Head-to-head meetings between the two teams often result in both teams scoring. Over 2.5 goals total is a good choice.
In the match between Rubin and Khimki, a mutual exchange of goals is likely. Rubin has defensive issues, conceding 6 goals in their last two matches. Khimki have shown attacking football, scoring in each of their recent matches. Both teams definitely have the potential to score. Also, their head-to-head statistics often show an exchange of goals. My prediction is both teams to score.