When two boats share the same hull type — in this case both the Starcraft Marine SF 1420 FLSS 2010 and the Starcraft Marine Sport Runabout 172 OB Sport 2013 are modified vee designs with aluminum 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?

On paper these two are close siblings in the size department — Starcraft Marine SF 1420 FLSS 2010 at 14,3 ft versus Starcraft Marine Sport Runabout 172 OB Sport 2013 at 16,8 ft. Weight tells a clearer story for trailering families: the Starcraft Marine Sport Runabout 172 OB Sport 2013 tips the scales at 152 lbs — 148 lbs less than the Starcraft Marine SF 1420 FLSS 2010 at 4 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.

The power gap is worth calling out. Rated to 130 hp, the Starcraft Marine Sport Runabout 172 OB Sport 2013 has a 105-hp advantage over the Starcraft Marine SF 1420 FLSS 2010's 25-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

For family outings this is probably the sharpest distinction between the two. The Starcraft Marine Sport Runabout 172 OB Sport 2013 is rated for 8 passengers, while the Starcraft Marine SF 1420 FLSS 2010 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Starcraft Marine Sport Runabout 172 OB Sport 2013 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Starcraft Marine SF 1420 FLSS 2010 comes in at 0 lbs per hp versus 1 lbs per hp for the Starcraft Marine Sport Runabout 172 OB Sport 2013. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.