CorelDRAW -better in my view, but maybe that's just because I'm more familiar with it.
You sometimes find old versions on magazine discs or you can download a trial (15 days I think) that will give you a chance to try it before shelling out.
There are cheaper 'clones' - Serif do one called, I think, Draw Plus. I haven't looked at it recently but tried it several years back and although it seemed potentially capable of doing the same as CorelDRAW it was very unstable.