Which language to learn?

I know that this has to be a quite frequently asked question, but a group only gets more valuable members by helping people who want to learn. Currently I'm sort of proficient with DOS commands. Obviously you cannot create a complicated graphical program out of DOS. I've heard all over this board that Python sucks, which ironically is the one language most of my friends recommended learning. What language can I learn that is actually useful?

I come to /prog/ for you guys are the only assholes on the internet that will bash other languages if they do suck. Forums have to be 'unbiased' and 'neutral'.

OP here. Several questions:
What's so good about CL, or Lisp at all?
What can Python do on its own? I actually am thinking about using a language to script/make programs that perform functions on my computer, for essentially customizing the way my computer works, and then if I can master that, make programs for my computer, then hopefully onto programs for other computers, etc. in that fashion.
Is SICP the all-encompassing manual for computer languages?
What is the difference between strong typing and static typing, or whichever the two options are?