I thought about this a lot , because it was making a machete that got me into knives to begin with
how are you going to transport it most , in a car , on your belt , slung across your back ?
what will you be using it on most ?
how long will you be using it at one go ?
these things combined dictate your length and weight .
and if its going to be a one knife does all jobs from axe to caping knife to kitchen knife and every other you will need to do on the camp site , or if its a machete ...
I began makig knives by turning out machetes out of leaf spring for my own use , then bought some in out of africa , now , Im buying them slowly from valiant co , who in turn sells them bashed out of leaf springs
my needs went froom cutting large amounts of bamboo like grass and cane , to clearing reeds and weeds and light twiggy stuff , to chopping heavier timber
your own personal preference will be THE deciding factor on what is the perfect machete tho , cos while it will be perfect for you , the next guy probly will want something radically different for his perfect tool ...
just my 2c