al-fakher has great smoke and flavor but flavors haven't been constant. af is one of my favorites.
nakhla doesn't usually produce huge smoke, but people have packed the bowl different ways to get it going crazy. nakhla usually has more natural flavors and is (i think?) the cheapest shisha you can buy right now.
starbuzz is huge on price, but huge on clouds and flavor too. it's expensive as hell that's why not a lot of people buy it.
i'd reccomend nakhla double apple, and sherezade chocomint(
333), and al-fakher vanilla. if you're willing to spend money, then go for some starbuzz citrus mist. tastes like gummy bears.