I lived in the kootenays and have been to Big Red Cats, Selkirk Wilderness and just did a week long backcountry course based out of Monashee Powder Snowcats. I've done a lot of research about cat operations and starting cat/heli operations in BC.
I could write a 20 page report on which place to go, but it would probably be best if we just talked over pm. It really depends if you're looking at staying at the lodge vs. Day trips at a cat skiing lodge. Do you value lodge life or just want good skiing and cheap frills? Every cat ski operation adds something different to the equation.
If I had to recommend a place based on the limited information I would probably say a 3 day trip at Selkirk wilderness is one of your best options. The lodge is great, guides super informative a big exclusive rights tenure and they do kind of market themselves to older people who bring their kids.
If you want day skiing, I would recommend Valhalla Powdercats over Big Red, Valhalla has a higher elevation, more terrain as their tenure also includes snowwater heliskiing and they run less cats, so it gets tracked out much less.
If you have anymore questions feel free to send a message.
"not that i have any issues against busted, coked out hoes." - loganimlach