Best is subjective. Everyone's tastes are different.
In terms of difficulty, unless you're getting into all grain brewing and doing things like "abrew in a bag triple decoction with a step infusion and a mashout" then one recipe is no more complicated than any other, especially if you are doing any extract with steeping grains recipe.
Your grain bill might be different for different recipes, but what you with them (the process) will be the same, which is something akin to "steep grains for x minutes, in y gallons of water, remove grains bring to boil, add extract and hops as directed, cool, transfer to ferment, pitch yeast and relax."