Is there a brand(s) of primers on the market that you just refuse to use.?

I'm trying to get my cousin started in reloading and I have a feeling his selections will be somewhat limited.

I've been reloading less than 10 years and have used basically Winchester primers for all my loads, so I don't have a large database to pull from.

Are there any brands that you don't like or refuse to buy due to quality or difficulty in working up a good load when using?