When comparing Loopback vs Restify, the Slant community recommends Loopback for most people. In the question“What are the best node.js web frameworks?” Loopback is ranked 8th while Restify is ranked 9th. The most important reason people chose Loopback is:
Easily and quickly get going.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Easy to get a project up and running
Easily and quickly get going.
Pro Automatic DTrace support
DTrace helps you with troubleshooting and building robust RESTful applications.
Pro Specialized for Restful APIs
As the name suggests, Restify is devoted solely to creating an elegant REST API. The API is the core of your site or service, so it makes sense to use a framework that excels at that.
Cons
Con Strong-PM process manager
It's not required to run a loopback app and can be a pain to deal with.
Con Performance is not very optimum
As most of the benchmarks have already revealed, for large inflows of traffic, apps powered by Restify perform below par and are easily beaten by Express.js in terms of load time (in heavy traffic).