The best replacement for facelets is jsf.

The best alternatives to facelets are rated as following:
★★★★★  jsf
★★★★  servlets
★★★★  freemarker
★★★  richfaces
★★★  jstl
★★  tapestry
★★  thymeleaf
  wicket

Your alternative for facelets is not listed? Suggest!
Speaking about facelets, one probably shouldn't forget about jsf.

Other search terms related to facelets and their ratings are:
★★★★★ jsf
★★★★ richfaces
★★★ trinidad
You have in mind a companion for facelets and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of facelets in all years. Click on graph for more.
facelets
jsf
servlets