Well even with a RWD car, its WAY easier with a proper diff, standard LSDs are nearly as shit as open ones.

ATBs make it harder as they automatically take the power AWAY from the wheel with the least resistance (ie the spinning one, or the one spinning fastest) so its constantly trying to drag itself straight.
Wheras to be in control properly when holding a drift you want them as good as locked, like what a decent plated diff will do.
ATBs are great and safe, but if you WANT to act like a hoon, theyl not help you.