"Ryazan" is the clear favorite in this matchup, and here's why. First of all, the team has already achieved 15 wins in regulation time, which is an impressive feat. Throughout the season, they have shown a high level of play and are likely to continue in the same vein. Secondly, "Ryazan" will be playing at home, which gives them a significant advantage. The hosts will be able to make use of their ice and get into a winning mindset. They can fully utilize the support of their fans, which can be an additional motivation for the team. Finally, they will be fighting for valuable points. Considering their high level of play and motivation, the team has every chance of winning. They will strive to dictate the game and control the pace of the match. Summing up all the arguments, it can be concluded that "Ryazan" has the advantage over the opponent in this match. The team has already demonstrated their strength and will be able to use it to their advantage. My prediction is that "Ryazan" will secure a victory over "Omsk Avangard".