If you end up picking White Widow it would be wise to purchase Shantibaba's White Widow, that he renamed Black Widow. If you want a strain that is known to be one of the best ever created you might as well purchase that strain instead of one of the roughly 25 knockoff strains that share the same name as the original but do not share the same genetics as the original.
Some White Widow knockoffs are predominantly sativa and some are predominantly indica so just going by a strain name is not assuring that you will receive what you actually want the most.