I use several shooting lines, depending on my application.
For most applications, I use either a Scientific Anglers Saltwater/Freshwater Intermediate shooting line or a Rio Intermediate Powerflex Core (coldwater version) shooting line. Both of these work well for my Southern California home waters as well as colder waters. I have used the S.A. line in the tropics too where it performed well. Airflo makes similar shooting lines.
I also use the Scientific Anglers Saltwater Shooting line. I find this line easier to grip than the intermediate lines, which comes into play sometimes when making strip strikes on large and or powerful fish like tuna and our local yellowtail. I have used this line in cold, temperate, and tropical waters. It does not shoot quite as well as the intermediate lines, but I still have no problem making very long casts. When used in colder water, it does require some stretching before fishing. With this line, it does take longer for the shooting head to sink to the desired depth.
These intermediate and floating shooting lines are essentially long, thin, level fly lines and I find them the best solution for most applications.
I also have used monofilament shooting lines for special applications. Currently, I use Amnesia when I need the fastest sinking line system possible. This thin mono offers minimum resistance to a sinking line so I tend to use it when I need to get down 20 feet or more, especially in current. The thin mono line also shoots extremely well also but some tricks must be used to get the best out it. I learned from others that if Amnesia is soaked in water the night before fishing it becomes much more user friendly and tangles less. It also benefits from the use of a stripping bucket fitted with cones or spikes to keep the coils loosely separated. Keeping the line wet also helps. When I use Amnesia I use a stripping basket or bucket with a solid bottom that will hold a little water. One disadvantage of Amnesia, and other monofilaments, is that it stretches quite a bit. This can make it more difficult to get good hooksets at long distances.
Rio SlickShooter is purpose designed custom mono shooting line that shoots very well and falls somewhere between Amnesia and the fly line like shooting lines in user friendliness.
When it is windy, I find that the mono shooting lines blow around too much so tend not to use them in such conditions.
I have used braided monofilament shooting lines but gave them up for for several reasons. One was that they stretch quite a bit, which I found adversely affects hooksetting at long distances. Also they are hard on the fingers and can pick up grit. They are also very light a blow around in the wind. Still, some anglers swear by them.
So my preference for all around shooting head usage is the intermediate shooting lines.
I match these with either Scientific Anglers or Rio shooting heads. I also make custom fast sinking shooting heads from Cortland LC-13 leadcore level fly line or Rio T-8, T-11, or T-14 tungsten level flyline.
Oh, and like Shorthaul, I like the S.A Streamer Express lines and use a 300grain line on an 8wt rod for a lot of fresh and saltwater bass fishing.
I find it more difficult to effective cast a line with a 30 foot head, whether it be a shooting head or and integrated line, from a seated position or a float tube. For me, a line with a 24 foot head works better in these situations. I use Teeny T Series lines for these applications.