Without taking into consideration the context of the rest of your system, please scratch Arcam off the list if you are looking for a lively and upfront presentation.
Having owned the Arcam Alpha 10 integrated amp, I just can say that this amp is somewhat of a cold fish with an uninvolving and laidback kind of sound, typical Arcam. I believe their recent iterations of amp more or less share the same sound signature. Have not heard of Creek so can't comment. Musical Fidelity is just okay.
If you want a Brit amp that will rock, try Naim.
Having owned the Arcam Alpha 10 integrated amp, I just can say that this amp is somewhat of a cold fish with an uninvolving and laidback kind of sound, typical Arcam. I believe their recent iterations of amp more or less share the same sound signature. Have not heard of Creek so can't comment. Musical Fidelity is just okay.
If you want a Brit amp that will rock, try Naim.