First, there was the pontoon. Somewhere along the way someone decided he could maximize boat space by planking a deck across two air-filled metal tubes and sticking an outboard on it. Then someone else realized that we can stretch out a bowrider and do that with a fiberglass hull too. Either way, you get a trailerable boat designed to be packed with people, toys, and food and drink. The idea being, once you step aboard, you never have to step off until sunset. But which best meets that mission? We teamed up with the Nautic Global Group, builder of some iconic decks and 'toons, to pit one against the other. Here's what we found, with a surprising twist of a third option.