Дабы подлить масла в неутихаюшие споры ...
Игрушечный global illumination renderer на куче языков: http://www.hxa.name/minilight/

+------------------+-----------------+-------------------+-------------------+
| language         | size            | size              | speed             |
| (and version)    | (lines of code) | (relative to C++) | (relative to C++) |
+------------------+-----------------+-------------------+-------------------+
| Scala 2.6.1      |      427        |       0.45        |      1 / 6.7      |
+------------------+-----------------+-------------------+-------------------+
| OCaml 3.10.1     |      461        |       0.48        |      1 / 2.7      |
+------------------+-----------------+-------------------+-------------------+
| Python 2.5.1     |      490        |       0.52        |      1 / 173      |
+------------------+-----------------+-------------------+-------------------+
| Ruby 1.8.6       |      498        |       0.52        |      1 / 575      |
+------------------+-----------------+-------------------+-------------------+
| Lua 5.1.3        |      568        |       0.60        |      1 / 14       |
| (LuaJIT 1.1.4)   |                 |                   |                   |
+------------------+-----------------+-------------------+-------------------+
| Flex 2/AS3       |      644        |       0.68        |      1 / 52       |
| (Flash 9,0,47,0) |                 |                   |                   |
+------------------+-----------------+-------------------+-------------------+
| C++ ISO-98       |      951        |       1.00        |        1          |
| (GCC 4.0)        |                 |                   |                   |
+------------------+-----------------+-------------------+-------------------+