I prefer writing calls to buying puts. (assuming a bit out of the money in both cases).
If the stock prices is exactly flat, when writing calls you keep all the money involved and buying puts you lose all the money involved.

In fact, I've been thinking about writing puts.

I have cash, earning modest interest. I would be a buyer of Berkshire at a valuation level more attractive than today's.
I could write puts at around that level. The two outcomes are that I get to keep the premiums (enhancing my "interest" yield), or I get Berkshire at a good valuation level at which I'd be a buyer anyway.
I'm not doing that right now because the premiums will be much better wen the gap between market price and "usual" valuation is a narrower, which I imagine will happen sooner or later.

Jim