"Best" is hard to define. Best really depends on you and what you want out of your holster. A plastic holster (you can use different words but plastic they are) is faster (unless you are using one with retention). Fobus holster are more than serviceable and usually run less than $25. Quality leather holsters usually will start at twice that, and sometimes much more than that. I seem to have better luck concealing a leather holster, it's "lines" seem to blend better to my body. I have also found that poly guns and plastic holsters work well together as the two materials don't seem to wear on each other like a plastic holster on a steel gun.
There is in life perhaps one fleeting moment when the courage, dedication and resolve of one man gambling against all odds will alter the destiny of nations.