If I am drift fishing for trout, I'll use an oval shaped weighted clicker cork (cork slides on a wire with beads). I get casting distance and a good "pop" with as little effort as possible.
For live bait fishing or imitation shrimp, I like the Mansfield Maulers in as small a size as I can find. The things barely stay above water, which is what I want. Years of live bait fishing the jetties taught me that when trout take a bait hanging from a cork and feel resistance, they tend to spit the bait. A large buoyant cork offers enough resistance that we'd miss a lot of trout. This had us free-lining more than cork fishing, but you get a lot of hang-ups free-lining. And then a famous jetty guru guide told us to use the Maulers and the catch ratio went up noticeably.
I used to use Maulers to fish soft plastics over heavy grass in the LLM (what they were invented for), but now that I have my TSL Grasswalkers, I'm good.