As @erik_squires said, JL has the auto EQ feature, and that is nice to have. It wasn’t worth the cost to me when I wanted to add 2 more subs.
And as @soix touched on, SVS subs have an app that lets you apply up to 3 PEQ points to each sub, along with other adjustments that can help integration, such as continuous phase control. To really take advantage of the SVS features, one needs a measurement system, such as REW with a UMIK-1 or the Dayton OmniMic2 system.
Unless your preamp or processor lets you adjust phase (or delay) of the sub relative to the main, a continuously variable phase control is a must on a sub. Since you are doing movies, too, you may be using a processor that can adjust phase, and maybe even automatically.