I like an occasional sweet flavor, but always seem to get tired of them quickly. I recently ordered some watermelon and thought it might be a daily vape. It was great at first but after a couple of days it wore off and became too much. I went back to my daily Dekang Tobacco vape. It's flavored very lightly and reminds me of a very ultra light cig with virtually no flavorings other than the vague sweetness off the PG. I can vape that day in and day out without tiring of it.
If I've learned anything from ECF, it's that juices are very subjective. Few will like your favorite as much as you do. The general theme of the typical "What's your favorite juice?" thread ends with people ordering some of that fantastic juice, only to post later that it tasted like soap or green apples or just yuck! Everyone has their own set of expectations.
I favor the sample packs, too. At least you get half a dozen bottles of various related flavors. Most of them will be marginally vapable and you might really like one or two. It's a cheap way to try new juices without shelling out $10 or $12 a bottle.