The best replacement for decorator is designer.

The best alternatives to decorator are rated as following:
★★★★★  designer
★★★  adapter
★★★  proxy
★★  wrapper
★★  presenter
★★  subclassing
★★  visitor
★★  interior designer
★★  strategy
★  mixin
★  builder pattern
★  interior design
  subclass
  chain of responsibility
  strategy pattern

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

Other search terms related to decorator and their ratings are:
★★★★★ displaytag
★ dweller
You have in mind a companion for decorator and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of decorator in all years. Click on graph for more.
decorator
designer
adapter