When two boats share the same hull type — in this case both the Boston Whaler 270 Vantage 2013 and the Boston Whaler 345 Conquest 2013 are deep vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

Size is the most obvious dividing line here. The Boston Whaler 345 Conquest 2013 measures 35,9 feet overall (2013), giving it roughly 9,0 additional feet of deck space compared to the Boston Whaler 270 Vantage 2013 at 26,9 feet (2013). At 52 lbs and 142 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The power gap is worth calling out. Rated to 900 hp, the Boston Whaler 345 Conquest 2013 has a 450-hp advantage over the Boston Whaler 270 Vantage 2013's 450-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Boston Whaler 345 Conquest 2013 carries 391 gallons versus 175 gallons in the Boston Whaler 270 Vantage 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Boston Whaler 345 Conquest 2013 is rated for 14 passengers, while the Boston Whaler 270 Vantage 2013 caps at 12. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Boston Whaler 345 Conquest 2013 could be the deciding factor.