I have a 2 yr old son and 4 yr old daughter. Like others have said, I've bought games for my wife and I, not for the kids. Our lineup includes TWD, Baywatch, Gorgar, ToM, Target Alpha, Paragon, and a TNA on the way. My son as no aversion to playing any of them, and tbh, gravitates towards TWD and Baywatch. He calls TWD "Zombies" and Baywatch by name (as well as Gorgar, and "Magic"). Right now, he chimp flips, but can definitely trap and hit shots. Sometimes, I feel like I'm letting him play TOO much, but he only ever comes down when I'm playing. My daughter likes to play occasionally, but isn't nearly as into it as my son is. When on location, they choose whatever tickles their fancy at the moment.
TLDR; get games you want to play, and if the kids play it, then that's awesome. IME, they aren't drawn to one theme more than the other based on what's on the backbox, cabinet, or PF.