Is it generally better to go for a c/r on a flop when you've called a raise OOP or is a donkbet a valid option?
For instance if you can't imagine villain's hit the flop, making a donkbet would be cheaper if he only raises with a strong hand, while if he reraises you when you've check/raised you've invested quite a bit more.
So what are the merits of the donkbet generally speaking?