Let's face it — the best and most powerful teams in the NBA don't really change from week to week. A handful of results in the middle of winter can only mean so much to a franchise's championship hopes. What does shift regularly, though, is how much interest a squad can hold over the course of a season. Every Monday, BDL's Most Interesting Power Rankings track the teams most worthy of your attention. THE TOP 15 1. San Antonio Spurs (20-5; last week : 2): Imagine how it must feel to be the Golden State Warriors. After winning your first 24 games, you finally lose one ... and that means you've only got a four-game lead for the top spot in the conference. As the Warriors chased history by showing us the future, the Spurs moved forward by reaching back to the past. San Antonio still plays the beautiful game — no team passes the ball more, and only Golden State averages more assists and adjusted assists (which includes "hockey" assists and passes that lead to free throws), per NBA.com's SportVU player tracking data — but the Spurs are making hay this year by slowing things down, running offense through two excellent frontcourt players (MVP candidate Kawhi Leonard and...