Do miners prefer RBF transactions over non-RBF transactions? Given a replace-by-fee (RBF) transaction and a non-RBF transaction with equal fees, do miners prefer the RBF transaction over the non-RBF one? Or is this entirely up to the particular miner?
It is up to the miner, but typically they do not care whether it is RBF or not. There's no difference to the miner whether they choose one or the other; the miner still earns the same amount in transaction fees.