When two boats share the same hull type — in this case both the Crestliner Batata Bay 1685 2010 and the Crestliner Batata Bay 2185 2008 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 Crestliner Batata Bay 2185 2008 measures 21,0 feet overall (2008), giving it roughly 3,5 additional feet of deck space compared to the Crestliner Batata Bay 1685 2010 at 17,5 feet (2010). Weight tells a clearer story for trailering families: the Crestliner Batata Bay 1685 2010 tips the scales at 1 575 lbs — 1 556 lbs more than the Crestliner Batata Bay 2185 2008 at 19 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 90 hp, the Crestliner Batata Bay 2185 2008 has a 40-hp advantage over the Crestliner Batata Bay 1685 2010's 50-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 25 gal and 25 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Crestliner Batata Bay 2185 2008 is rated for 9 passengers, while the Crestliner Batata Bay 1685 2010 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner Batata Bay 2185 2008 could be the deciding factor.
Bottom line: Choose the Crestliner Batata Bay 2185 2008 if your priority is putting more people on the water — it handles 9 passengers and at 21,0 ft it has the deck room to back that rating up comfortably. The Crestliner Batata Bay 1685 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.