The Philips Mastercolor 4000K lamps are the best if you want that halogen/incandescent color, I currently use the Mastercolor 4000K CDM (100w) in my living room in a torchiere uplighter and the CRI and color quality is pretty incredible and nearly identical to quartz halogen. Do not get the 3000K version, they are VERY warm and give a slight orangy-pink hue similar to a 2700K CFL. All ceramic MH lamps run warmer than their rated K-temp, I have yet to find a 4000K CMH that runs as cool as a 4000K quartz MH. Warm white quartz MH (3000K) are also pretty bad when it comes to emulating halogen, the Sylvania 100w metalarc is a protected 3000K lamp and it burns VERY pinkish orange, the CRI is also pretty bad as well. So stay with CMH.

I agree with this statement.  I had a Luminaire that used the Philips Mastercolor, and the light was very warm and inviting.  Only problem was the life was not very long, and I was replacing these quicker than most of my incandescents.  The technology was in its infancy though at the time.