Chicago is better coached and has been more consistent than Las Vegas.
The Sky enter this matchup with a lot of confidence having won their first playoff game since 2016. That was an impressive 105-76 home win against Phoenix this past Wednesday. Offense isn't a problem for the Sky. Defense sometimes is and they held the Mercury to 36.9 percent shooting from the floor.
Chicago has covered eight of its past 11 road games. The Sky also are 12-5 ATS in their last 17 overall games. 
Note this game is being played Thomas & Mack Center, not Mandalay Bay which is the Aces' normal home floor. The Aces haven't played in a week. That's too long between games. Las Vegas has failed to cover 14 of the last 19 times it has played an opponent sporting a winning record.