The best replacement for node.js is php.

The best alternatives to node.js are rated as following:
★★★★★  php
★★★★  python
★★★★  django
★★★★  java
★★★  rails
★★★  jquery
★★★  apache
★★  ruby
★★  ruby on rails
★★  backbone.js
★★  go
★  golang
★  nginx
★  .net
★  asp.net mvc
★  scala
★  asp.net
★  tornado
  twisted
  iis
  vert.x
  tomcat

Your alternative for node.js is not listed? Suggest!
Speaking about node.js, one probably shouldn't forget about php.

Other search terms related to node.js and their ratings are:
★★★★★ php
★★★★★ mysql
★★★★★ apache
★★★★★ express
★★★★ postgresql
★★★ rails
★★ redis
★ asp.net
★ .net
★ jquery
socket.io
You have in mind a companion for node.js and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of node.js in all years. Click on graph for more.
node.js
php
python