Both the Beneteau Antares 10.80 2008 and the Beneteau Swift Trawler 42 2010 are modified-V designs, both built in fibreglass, so 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 Beneteau Swift Trawler 42 2010 measures 44,3 feet overall (2010), giving it roughly 9,3 additional feet of deck space compared to the Beneteau Antares 10.80 2008 at 35,0 feet (2008). Weight tells a clearer story for trailering families: the Beneteau Swift Trawler 42 2010 tips the scales at 22 000 lbs - 9 125 lbs less than the Beneteau Antares 10.80 2008 at 12 875 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
For family outings this is probably the sharpest distinction between the two. The Beneteau Swift Trawler 42 2010 is rated for 13 passengers, while the Beneteau Antares 10.80 2008 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Beneteau Swift Trawler 42 2010 could be the deciding factor.
Bottom line: Choose the Beneteau Swift Trawler 42 2010 if your priority is putting more people on the water - it handles 13 passengers and at 44,3 ft it has the deck room to back that rating up comfortably. The Beneteau Antares 10.80 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.