The best replacement for z77 is z87.

The best alternatives to z77 are rated as following:
★★★★★  z87
★★★★★  x79
★★★★★  z68
★★★  p67
★★★  b75
★★  h77
★★  z78
★★  q77
★  h77 motherboard
★  z79
★  z75
★  h61
★  z68 motherboard
★  z87 chipset
★  z68 chipset
★  z75 chipset
★  h87
★  z77 express
  h81
  maximus v formula
  x79 chipset
  p67 chipset
  z87 motherboards
  z87 motherboard
  z77x
  h67
  h77 chipset
  z68 motherboards

Your alternative for z77 is not listed? Suggest!
Speaking about z77, one probably shouldn't forget about sandy bridge.

Other search terms related to z77 and their ratings are:
★★★★★ sandy bridge
★★★★★ 2500k
★★★★ 2600k
You have in mind a companion for z77 and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of z77 in all years. Click on graph for more.
z77
z87
x79