Spendor SA1, Rega RX One, and Linn Majik 109. Didn’t like the Rega in comparison to the other two (sounded thin and sloppy). Linn and Spendor both nice but more expensive. I would have needed more than the hour to determine a winner between Spendor and Zlinn. Amp was Rega Elex-R with Rega Apollo CD player for the demo.
It was a year ago so beyond these notes that I jotted on my phone now copied above I don’t remember much
In general I like Rega amps more than Rega speakers
Of your choices I’d go Kef. But that’s me. Speaker choice is very personal. But the three I listened to definitely sounded quite different. Your preference might be directly opposite mine