Reviews are useful but my experience tells me never to trust reviews if you are able to listen to the gear or equipment personally to determine whether it will suit your listening preference. My latest amp I bought received excellent reviews by 6Moons and TonePublications but it lasted less than 8 months in my system.
I have not listened to any of the three amps that are listed above but know of a person who uses Naim amplification on his Spendor A6. If I were to choose one out of the three I would pick the Creek Destiny. From what I read here in the forums the Creek sounds closer to the Naim with a more forward and dynamic sound. The Primare will be warmer and laidback, just as what Kbarkamian had described. You might want to choose an amp based on your musical preference.
I have not listened to any of the three amps that are listed above but know of a person who uses Naim amplification on his Spendor A6. If I were to choose one out of the three I would pick the Creek Destiny. From what I read here in the forums the Creek sounds closer to the Naim with a more forward and dynamic sound. The Primare will be warmer and laidback, just as what Kbarkamian had described. You might want to choose an amp based on your musical preference.