For the classic Rhodes and Wurlitzer I use Scarbee Vintage Keys (part of Komplete) mostly. I usually just select the DI preset and put Overloud's VKFX in Sonar's FX bin. VKFX is a great suite of effects tailored to vintage EP sounds. But I prefer the Sampletekk Clavinet and Pianet to the Scarbee versions of these keyboards. I also use Hollow Sun’s RMI and CP70.
Most synth EP patches don’t sound that convincing to me. The physically modelled stuff (Lounge Lizard, Arturia V Collection) is decent but the above are my gotos.