You're underrating the East teams and overrating the Western ones, the only West team I'd pick to really walk through the Bulls or Cavs are the Grizz, everyone else would be in for a tough series and could definitely lose against them. The Grizz are the only team in the West built to defend against pretty much all styles of play. The Clippers do not have a steady rotation of perimeter defenders, Barnes doesn't have the quickness to even make him work, in 4 of their last 5 games LeBron has scored 30 or more vs the Clippers, and in the game he didn't he had 23 in just 27 minutes (Game was over by the 3rd quarter). The Spurs wing players were trash outside of Kawhi, again had they played Patty Mills more than Parker they win that series, he averaged 10ppg in 16mpg on 50%. The Rockets don't have anyone outside of Harden that can score on the perimeter, literally nobody else.
Going against LeBron/Kyrie or Butler/Rose is a completely different ball game from what they have faced so far, they are weak on perimeter defense and have been all season. That hasn't changed, they just haven't had to play against anyone that can expose that weakness. The Bulls and Cavs would be the favorites over them in my opinion