My nieces and nephew put my IJ, TZ and EatPM to the test back before Christmas. My youngest niece likes Elvira, the older niece prefers TZ and my nephew goes between TZ and IJ.
I think my youngest niece prefers Elvira since it’s a bit more silly, simpler to play, and it has some really good light effects.
My older niece just loves the mini playfield on TZ.
And my nephew...I’m not sure why he prefers TZ and IJ. Maybe because I’ve had them longer and they are the two he has played the most. I picked up Elvira a little over a year ago...