While burning the chametz is clearly the most popular, it is really not the only solution to disposing of it right before Pesach.
Other solutions I remember learning about are scattering it in the sea, dissolving it with acid, soaking it with poison, etc.
Is burning really the best form of Biur? Or is it most popular because of the confusion of what the word means... (biur means "getting rid of", as opposed to hav'ara which means "burning")?
Or is it just because burning things with fire is, well, fun :)
All else being equal, which is the first choice of Biur?