Better Rails errors
You guys would be amazed if you tried frameworks like Symfony (instead of discarding PHP for not being beautiful or whatever). It has always had these features, and in Symfony2 it only got more awesome. You even have a complete analysis for each request, that you can open with one click:https://s3.amazonaws.com/i.imm.io/OvjX.jpeghttps://s3.amazonaws.com/i.imm.io/Ovk9.jpegEdit: Being downvoted. Some people just don't like knowing the truth.