it all depends on your driving style, and the depth of your wallet. if your a cruiser, drums will work just fine. if your more like a street racer or drive like your doing auto-x, i think discs would be the way to go. while drum brakes do have a greater brake swept surface area, the reason disc brake brakes have become the industry standard on cars is their ability to dissipate heat is superior to drum brakes. when braking, brakes convert the motion of the car to heat. that heat needs to be removed for the braking to continue to work. the more efficiently that heat removed, the better your braking will be. rotors are more efficient then drums are at removing heat.
now I'm not saying drums are bad. my 57 olds still has the factory drum brakes front and rear. and when it was raced in mexico, it went through 6 sets of front shoes while racing in the mountains. the shoe material was heat cracking, because it couldn't dissipate the heat.
now there are ways to maximize your drums, by using aluminum drums, drums with external fins, larger drums( mid-seventies a-body wagons came with 11"finned drums on the rear), or what they did in the sixties was to run high metallic segmented shoes and holesaw large holes in the backing plates to help vent the heat.
so, consider your driving style and determine how much you want to spend. sometimes its cheaper to buy a lot of shoes in place of upgrading to discs.