score:2
There are busses that depart from the main station and two companies occupy the route;
Price and route is the same so just pick the one where there's a lot of people.
There's also the SukoiΕ‘an Bus Terminal with airport connections, namely bus 37. Trogir is a town west of the airport, Split is east.
There are taxis just north of the bus station (3 meters) and you should always ask for a fixed price, e.g. 250 kn. Else it can get much more expensive. You might have to ask around to get a fixed/good price but that's no problem, there's no "taxi queue" there that you might find at other places.