I don't know that will be accepted on any Stack Exchange site. It's not that the question is necessarily bad, but but Stack Exchange standards, we prefer questions that are answerable in a subjective way.
When you ask (emphasis mine):
Can anyone give an example of a poker hand evaluator that has good style?
I've highlighted the two problems above.
The first ("give me an example") is very open ended in that you're asking people to list things that fit this criteria. The Q&A format of Stack Exchange is really not very good at handling list items, for a number of reasons, and more often than not, these questions are closed as "Not Constructive".
The second ("that has good style") is again, "Not Constructive". What defines good style? Everyone has an opinion, and they don't always align with each other. Granted, everyone's answer to every question is an opinion of sorts, but for most of the questions on Stack Exchange, the answers are verifiable, which allows them to be rated.
That said, the answer to your question of which site you should post on is * neither*, as the network isn't geared towards questions that have those specific qualities.