Pros of D

• 16

  Compile-time function execution
• 12

  Makes functional programming style easier
• 12

  Productive
• 12

  Much easier to do Concurrent/Parallel vs C/C++
• 11

  Simple but Powerful template-based generics
• 11

  Powerful static function to avoid macro
• 10

  Meta program is much easier to read/write vs. C++
• 9

  It support unittest etc
• 9

  Assembler is support directly in the language
• 9

  System program language like C++ and C
• 9

  Supports code covarge directly in the compiler
• 7

  Metaprogramming
• 7

  Supports both manuel memory and garbage collection
• 6

  Plugs directly into C
• 6

  Easy to translate from Java and C# to D
• 5

  Feels and looks like C, so it's easy to learn
• 4

  Amazing developer productivity
• 2

  Fast
• 2

  Performance
• 1

  Syntax uniformity across pre-compile/compile/runtime

Pros of Perl

• 72

  Lots of libraries
• 66

  Open source
• 61

  Text processing
• 54

  Powerful
• 49

  Unix-style
• 47

  Regex
• 37

  Stable
• 32

  Concise syntax
• 29

  Hackerish
• 22

  Easy to use
• 16

  Swiss army chainsaw
• 13

  Code Less Do More
• 12

  CPAN
• 9

  Freedom
• 8

  All purpose
• 5

  Readability
• 5

  Familiar
• 5

  Many ways to do it
• 5

  Community
• 4

  Object-Oriented
• 4

  Modular
• 4

  Smart (does alot for you)
• 3

  Postmodern
• 3

  It's the best one-off task language
• 2

  For a man
• 2

  Good man pages
• 1

  Auto case variables
• 1

  Single Source Library (CPAN)
• 1

  Multi-threaded support
• 1

  Multiparadigm
• 1

  C-style
• 1

  Hashes

Cons of D

Cons of Perl

• 4

  Messy $/@/% syntax
• 3

  No exception handling
• 2

  Bad OO support
• 2

  "1;"
• 2

  No OS threads
• 1

  Variables are global by default
• 1

  Copy-on-create for interpreter-based threads
• 1

  Barewords
• 1

  Errors/warnings are ignored by default