In the past when I have been creative, I only really create for myself. When I've been asked to produce things at college or uni, it would still be considered for yourself than for anyone else - you are really only creating to further your knowledge of creating. Even when playing the guitar, when coming up with my own things, I don't play it for anyone else, just myself.
Thus, I would say that the reason I create stuff is either to learn to create it, or to have a record of what I'm able to do.
I feel that this is the way I have always done it. It's a great feeling to step back from something you've been working on, and to feel that you have done a good job.
As a result, I want to be able to work in an environment where I am able to work at my own pace. I find it difficult to generate ideas without any inspiration, so perhaps a place where I can be a part of a team would be ideal.
I think I'd want to work in advertising, but this puts me in a difficult position in terms of which pathway to choose - choosing the pathway for film work would help with learning editing techniques and filming techniques for adverts with people in them. Choosing the animation pathway will teach me how to create 3D and 2D animated adverts. Choosing the web and flash pathway will teach me how to animate in flash, which I can see as being possibly the least useful, depending on how big flash becomes in the future, however I would much like to learn to use actionscript.
I suppose I would need to perform exploratory/descriptive research to find out more about specific jobs within creating adverts.
I like finding about new things, although I also like to find out how things work, which doesn't seem to be covered by those listed by Jools, although to categorise it I would probably say it comes under descriptive. I don't think I have a particular aversion to any of the types of research so much as I have an aversion of distancing myself too much from actually creating things. Nevertheless, research is a very necessary process, and often it can uncover something that you hadn't previously realised.
I can't say that any of the forms of research feel particularly irrelevant either. As much as asking questionnaires or looking at research performed by agencies is a vital form of research, taking a step back and looking at what you've done can also help to point you in new directions.
I fear I have followed the Q-A structure rather closely, but I was struggling to think how to structure it otherwise!