Both the Larson Escape 204 I/O 2007 and the Larson SEi 180 Ski Fish O/B 2007 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?
On paper these two are close siblings in the size department - Larson Escape 204 I/O 2007 at 20,0 ft versus Larson SEi 180 Ski Fish O/B 2007 at 17,0 ft. Weight tells a clearer story for trailering families: the Larson Escape 204 I/O 2007 tips the scales at 3 100 lbs - 1 400 lbs more than the Larson SEi 180 Ski Fish O/B 2007 at 1 700 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 Larson SEi 180 Ski Fish O/B 2007 tops out at 150 hp. Engine specs for the Larson Escape 204 I/O 2007 aren't listed - confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Larson Escape 204 I/O 2007 carries 50 gallons versus 23 gallons in the Larson SEi 180 Ski Fish O/B 2007. 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 Larson Escape 204 I/O 2007 is rated for 11 passengers, while the Larson SEi 180 Ski Fish O/B 2007 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson Escape 204 I/O 2007 could be the deciding factor.
Bottom line: Choose the Larson Escape 204 I/O 2007 if your priority is putting more people on the water - it handles 11 passengers and at 20,0 ft it has the deck room to back that rating up comfortably. The Larson SEi 180 Ski Fish O/B 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.