i have always noticed that most of the figures are around the same height/scale as the fantasy rpg figures that i collect. they are of 25mm scale, or 5mm = approx. 1 foot.
i don't believe that the different heights in the figures matters, from what i have seen there is not a drastic enough difference to seperate them into different scale categories. as a matter of fact, i am thinking of eventually making a team with all companies figures just to have different heights on the field. i.e. the regular miggle figures be scaled to be doug flutie or darren sproles size, etc..
as long as they all fit on the same sized base, they all have to travel the same amount of distance, the only factor may be weight.
don't know if this is the type of answer that you are looking for, but, it's something.
