HOME THEATer PRE AMP NAD, ROTEL, or Anthem

Please give me your evaluation of which pre amp to buy. I have top of the line Vandersteen front, center, rear, and bass speakers. I replace the PSE mono block system as they went out with a new Marantz power amp, and Oppo DVD. My AV 8003 went out and now I need a new pre amp. The three I think I have zero'ed in on is Nad T 187, Rotel 1572, or an Anthem 60. Thanks in advance for the help.