The best replacement for mcs is pvs.

The best alternatives to mcs are rated as following:
★★★★★  pvs
★★★★  mpio
★★  mscs
★★  hcs
★★  sabian b8
★★  sage ebr
★  rappers
★  mca
★  ms
★  mca which is better
★  ucs
★  lincoln park
★  jcw
★  jrz
★  ksg
★  poets
  zildjian zbt
  paiste pst 5
  zildjian zht

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Speaking about mcs, one probably shouldn't forget about personal vdisk.

Other search terms related to mcs and their ratings are:
★★★★★ personal vdisk
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Google Trends

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mcs
pvs
mpio