Per story in the Memphis Commercial Appeal https://www.commercialappeal.com/story/sports/college/memphis-tigers/football/2018/10/31/memphis-football-recruiting-tigers-2019-class-best-mike-norvell-aac/1804406002/
SMU's class is ranked higher by both 247 (#52 vs #55) and Rivals (#43 vs #49).
There's likely to be attrition and late adds, but no matter who ends up as #1, this is good news for the Mustangs.