I have the choice at school to take either motorola of intel assembly langauge. Which one in your opinion should I take? Does either have more or less to do with game development?

Intel !!!

Intel will be more important to game design.
Moderola, IMHO, is a little easier to understand.

So its your choice, either start with the one that you will use, or start with the one that allows you to get the concepts down, THEN move to the one that you will use...

All bets are off for console development tho

Its an old argument, pascal to C++. (easy -> goto one you will use), or C++ (hard, but thats the one you will use anyways, get use to it now!).