Python (must have). And then Ruby, Lua, R, Go, and C# in no particular order (just suggestions). R would be huge for statistical computing, which Lambda holds

Python (must have). And then Ruby, Lua, R, Go, and C# in no particular order (just suggestions). R would be huge for statistical computing, which Lambda holds a lot of potential for -- research would never be the same. Lua would be fitting/appealing just because of its speed and small runtime. The others seem to hold relatively happy spots on TIOBE and in Stack Overflow tags and would fit the Lambda model well.