When two boats share the same hull type — in this case both the Starcraft Marine 170 Sport 2010 and the Starcraft Marine 1900 C 2010 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 170 Sport 2010 at 16,8 ft versus Starcraft Marine 1900 C 2010 at 19,0 ft. Weight tells a clearer story for trailering families: the Starcraft Marine 1900 C 2010 tips the scales at 2 718 lbs — 1 623 lbs less than the Starcraft Marine 170 Sport 2010 at 1 095 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 200 hp, the Starcraft Marine 1900 C 2010 has a 60-hp advantage over the Starcraft Marine 170 Sport 2010's 140-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Starcraft Marine 170 Sport 2010 carries 32 gallons versus 5 gallons in the Starcraft Marine 1900 C 2010. 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 Starcraft Marine 1900 C 2010 is rated for 11 passengers, while the Starcraft Marine 170 Sport 2010 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Starcraft Marine 1900 C 2010 could be the deciding factor.