The point jangid made above about being able to specify part of the program with only one character makes a significant difference: What I like about Lisp's

The point jangid made above about being able to specify part of the program with only one character makes a significant difference: What I like about Lisp's syntax is that the cursor (point) is always in a complete Lisp program. You move up one set of parenthesis, again a complete program. Move up further .... till you reach the top (file-level). So this gives good opportunity to Editor makers. Compile "this" level, 1-level-up, 2-level-up and so on. In an editor you can always check your program while coding.