The best replacement for component is hdmi.

The best alternatives to component are rated as following:
★★★★★  hdmi
★★★★  composite
★★★  s-video
★★  vga
★★  composite video
★★  coaxial
★★  s video
★★  composite cables
★  dvi
★  rca
★  hdmi xbox 360
★  rgb
★  bower
★  scart
★  av
★  coaxial speakers
★  hdmi cables
  hdmi quality
  hdmi cable
  composite cable
  module
  composite better
  hdmi ps3
  service
  hdmi for ps3
  coaxial car speakers
  projection
  3 way speakers
  professional component
  composite wii
  part
  coaxial speaker
  optical
  scart which is better
  composite video cables

Your alternative for component is not listed? Suggest!
Speaking about component, one probably shouldn't forget about audio cables.

Other search terms related to component and their ratings are:
★★★★★ audio cables
★★ composite cable
You have in mind a companion for component and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of component in all years. Click on graph for more.
component
hdmi
composite