excuse me while i climb up on my soap box.....
i have always chuckled at this question.
its like saying .."whats the best car"?
well, what do you want to do? haul the kids around, go off roading, or deliver 3 tons of lumber to a wood factory 1500 miles away?
depends on what you wanna do. i would suggest getting an sm 57 period.
then a decent, name brand condenser mic.
then go from there, experiment with stuff