I haven't tried them with Revels personally, but the Wolcott amps are quite good at driving difficult loads (such as the full-range electrostats I also peddle). Their adjustable output impedance gives 'em a bit more flexibility in optimizing the amplifier-loudspeaker interface, and I personally like the lovely midrange you get with the EL34 output tube.
That being said, the CAT amps mentioned by Tireguy are also a very good choice. I'm not sure the VTL's are real comfortable with a load that dips to 3 ohms.
Best of luck to you!