When two boats share the same hull type — in this case both the Bennington 17 SL 2012 and the Bennington 23 SL I/O 2011 are pontoon 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?

Size is the most obvious dividing line here. The Bennington 23 SL I/O 2011 measures 22,3 feet overall (2011), giving it roughly 4,9 additional feet of deck space compared to the Bennington 17 SL 2012 at 17,4 feet (2012). Weight tells a clearer story for trailering families: the Bennington 23 SL I/O 2011 tips the scales at 2 811 lbs — 1 320 lbs less than the Bennington 17 SL 2012 at 1 491 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.

Both boats share a closely matched power ceiling — 50 hp for the Bennington 17 SL 2012 and 32 hp for the Bennington 23 SL I/O 2011. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Bennington 23 SL I/O 2011 carries 62 gallons versus 15 gallons in the Bennington 17 SL 2012. 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 Bennington 23 SL I/O 2011 is rated for 12 passengers, while the Bennington 17 SL 2012 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Bennington 23 SL I/O 2011 could be the deciding factor.

Both are 2-tube and 3-tube pontoon designs respectively. Tube diameter and gauge affect stability and load capacity — more so than most buyers realize when comparing on paper.