Not a fan of either of these themes...Motley Crue would probably be my choice though between them. If the crue guys didn’t mind it being a little campy and included the more over the top elements of their self-alleged activities it could be a little fun. And their music - while kind of disposable and light, could work ok in the confines of a pinball.
Rush I’m just not a big fan of..and their appeal across demographics (ie women) seems to be about nil. There are some very dedicated rush fans but I bet there’s more generic “80s rock fans” who would go for a crue game to relive their teenage hijinks in the 80s.
Rush would probably do ok in sales (like all classic rock pins) but I think crue would do better.