gunkulator
Emperor
The Expansionist trait can help with early contacts, however eventually all the AIs on one landmass will meet and so your advantage is gone quickly. Seafaring lets you build 3-move per turn curraghs that are also quite helpful for meeting your neighbors but also have a good shot at making it across the ocean to the next landmass. You can become a real trade broker for a much longer time. As for huts, at upper levels the AI gets most of them anyways. Seafaring grants +1 sea movement, +1 commerce for coastal cities and cheap harbors. These last the whole game.
So for pangaea, Exp may be moderately better. For all other map types, I prefer Seafaring.
So for pangaea, Exp may be moderately better. For all other map types, I prefer Seafaring.