For me, this depends mostly on the size of the project, amount of usage (etc) so depends on just how much thought I give it.

However, programming with Perl as left me with the idea that if the program is *hard to write* then I have the wrong datastructure or algorithm (usually both) and I'm shooting myself in the foot.

Of the groupings you mentioned, because of the above I'd say I fell between science and art. After all, recognising why and how something is hard (or not) is an art yet the physical act of programming itself is more of an empirical science. To me at least.

Because of that, I don't see variables as *variables* I visualise the thing they are doing on my behalf. In some cases (wierd as it may sound) I even think of them as sticky notes, post-it notes if you're from the UK :).

I don't think, however, that if someone looked at my code they would necessarily see my 'programming personality' as I am forced to keep my code as structured and as clear as possible due to my working environment. I do the personality stuff for fun :).