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 week, BDL's Most Interesting Power Rankings track the teams most worthy of your attention. THE TOP 15 1. Cleveland Cavaliers (47-18; last week : 4): Y'know, when they're not stumbling against also-rans and wounded bears , not bristling about the 13th man they didn't sign or getting weirdly woke online or in interviews , the Cavs can be really good. Play Tourney Pick'em | Fill out your bracket | Print it | Celebrity Challenge Cleveland's now won six of seven after stomping through a three-game Cali swing, capped by a 24-point whitewashing of the Los Angeles Clippers in which the Cavs incinerated a defense that entered Sunday ranked fifth in the NBA in points allowed per possession, and third since Blake Griffin got injured. Time and again, the threat/promise of LeBron James driving past Luc Richard Mbah a Moute, Wesley Johnson, Jeff Green or whichever other L.A. defender...