Chose your co-programmer.

From these stereotypes:

1:
Languages by experience: Bash, Python, Ruby, Perl, Haskell
Languages by love: Haskell, OCaml, Erlang, Scala, "Lisp"
Has written: Automated testing software, eStores, social network data mining software.
Favorite programs: Git, BSD, Vim, Sublime text, Twitter
Hates: Object oriented programming.
University grades: Completely average.

2:
Languages by experience: Java, C++, Smalltalk, Common Lisp, Forth
Language by love: Common Lisp, Forth, Smalltalk, Java
Has written: Equipment calibration, educational software, traffic control systems, signal processing and visualization
Favorite programs: Codewarrior, IntelliJ, Emacs, Zmacs, Macsyma, Mirai, Genera, Squeak, Mathematica, ACL2, Qemu, GNU Electric
Hates: UNIX
University grades: Very high, but two random fails.

3:
Languages by experience: C++, C#, x86, VB.NET, Delphi
Languages by love: Delphi, C#, x86, VB.NET, C++
Has written: Antivirus software, Serious Sam, natural language processing software
Favorite programs: Hiew, Visual studio, WinDbg, Borland Turbo Pascal, PIX, Windows 2000, FreeDOS.
Hates: Excessive use of libraries.
University grades: terrible.

I refuse to judge the future perfomance of an individual by their past work. The only factor that I take into consideration is what they hate. It's ok to hate something, but it's not ok if that hate prevents them from taking the said thing into consideration as a possible solution to problems. Given this, I would make my choice considering my impression of how open or closed they are to using things they hate, and how necessary the things they hate may be to the problems at hand.

>>3
3 is the most interesting but I elect instead to produce an ocr program that outperforms the average human at captchas.