I have owned both ST Pro and AIQ Premium. Get Stranger Things by far, especially with UV kit. To sum up AIQ, it's pretty artwork, theme is there, shots(especially Premium) are cool, but the game (and integration) has no soul at all...I literally don't feel like I'm playing an Avngers game at all.
Every casual player who comes to my house preferred Mando & TMNT over AIQ by a wide margin.