The best replacement for raspbmc is raspbian.

The best alternatives to raspbmc are rated as following:
★★★★★  raspbian
★★★★★  openelec
★★★  rasplex
★★  openelec xbmc
★★  xbian
★  crystalbuntu
★  openelec raspberry pi
  raspbian with xbmc
  xbmc on raspberry pi

Your alternative for raspbmc is not listed? Suggest!
Speaking about raspbmc, one probably shouldn't forget about xbmc remote.

Other search terms related to raspbmc and their ratings are:
★★★★★ xbmc remote
★★★ berryboot
★ flirc
You have in mind a companion for raspbmc and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of raspbmc in all years. Click on graph for more.
raspbmc
raspbian
openelec