Hi mate, I know nothing personally about these, but go with what my children tell me. I have an eight year old daughter who has a switch lite and an 11 year old son who has a switch oled. The difference in quality is apparently night and day. Bigger screen, clarity and brightness etc, but obviously a cost difference of approximately £100.
So factors could be age of your daughter, cost and perhaps the use of it? My daughter doesn’t use hers much, but mainly on holiday or in the car. She prefers her ipad. YouTube is her thing, watching just utter nonsense.
My lad likes his, but mainly plays just a couple of things, Roblox I think? He now wants a playstation 5 for Christmas, so we’re saving for that right now and watching deals.
I know nothing about an updated switch version coming next year, but depends on how badly your daughter wants one I suppose? Hope this helps and all the best