The best replacement for jelly bean is kitkat.

The best alternatives to jelly bean are rated as following:
★★★★★  kitkat
★★★★★  ice cream
★★★★  honeycomb
★★★★  gingerbread
★★★  ice cream sandwich
★★★  kitkat battery life
★★  ios
★★  gingerbread android
★★  ice cream android
★  snapdragon
★  jelly belly
★  gingerbread differences
★  ics
★  cyanogenmod
★  jelly bean
★  ice cream sandwich which is better
★  ios 6
★  ice cream os
★  ice cream operating system
★  ice cream sandwich tablet
★  ice cream sandwich operating system
  windows phone 8
  ice cream sandwich android
  kit kat
  ics which is better
  android 4.0 ice cream sandwich

Your alternative for jelly bean is not listed? Suggest!
Speaking about jelly bean, one probably shouldn't forget about touchwiz.

Other search terms related to jelly bean and their ratings are:

★★★★★ touchwiz
You have in mind a companion for jelly bean and it is not yet here? Propose!

Google Trends

Scale is based on the average worldwide traffic of jelly bean in all years. Click on graph for more.
jelly bean
ice cream