When two boats share the same hull type — in this case both the Crestliner Backwater 1652 Tiller 2011 and the Crestliner Sportfish Series 1850 SST 2009 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 — Crestliner Backwater 1652 Tiller 2011 at 16,0 ft versus Crestliner Sportfish Series 1850 SST 2009 at 19,0 ft. Weight tells a clearer story for trailering families: the Crestliner Backwater 1652 Tiller 2011 tips the scales at 654 lbs — 502 lbs more than the Crestliner Sportfish Series 1850 SST 2009 at 152 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 175 hp, the Crestliner Sportfish Series 1850 SST 2009 has a 125-hp advantage over the Crestliner Backwater 1652 Tiller 2011's 50-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 Crestliner Sportfish Series 1850 SST 2009 is rated for 7 passengers, while the Crestliner Backwater 1652 Tiller 2011 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner Sportfish Series 1850 SST 2009 could be the deciding factor.