Yield farming offers higher APY but your asset is prone for impermanent loss so if you are holding huge amount of money and decided to place it on yield farming while the price is very volatile either way, you will lose the original value of your tokens while getting stable APY. On the other hand staking offers small APY but your asset value is as is without any impermanent loss so you will get extra fiat profit plus staking reward if the tokens value increase.

 I prefer staking over yield farming because you can get benefit when the token price increase since volatility in crypto is high while still earning passively.