Two Turkish league matches where the table and the recent set scores point the same way: the leaders are clearly the stronger side, and the question is only how cleanly they close it out.
Vakifbank sit first with a perfect record, a big set difference and seven straight wins, and their home form is spotless over the last ten. THY are a good third team, but their wins tend to come in four sets and they have rarely beaten sides at the top. Rest is level for both, so there is no fatigue angle. Lineups are not out, so I keep the size modest. That's why I'm siding with Vakifbank to win and to take at least three sets to one.
Besiktas against Eczacibasi is a gap in quality: fourth against ninth, a set difference of plus seven against minus three. Eczacibasi swept three weaker sides and their only losses came against the top teams. Besiktas lose big sets to strong opposition and win theirs mostly by narrow margins. Their serve can pull a set back, but over a whole match the better attack should win most sets. I'm siding with Eczacibasi to win in straight sets.