The Bayliner 204 Ski N Fish 2009 is a modified-V design and the Bayliner 315 SB 2010 is a deep-V design, so you're likely deciding between two noticeably different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

Size is the most obvious dividing line here. The Bayliner 315 SB 2010 measures 30,5 feet overall (2010), giving it roughly 10,5 additional feet of deck space compared to the Bayliner 204 Ski N Fish 2009 at 20,0 feet (2009). Weight tells a clearer story for trailering families: the Bayliner 315 SB 2010 tips the scales at 9 098 lbs - 6 053 lbs less than the Bayliner 204 Ski N Fish 2009 at 3 045 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 - 260 hp for the Bayliner 204 Ski N Fish 2009 and 260 hp for the Bayliner 315 SB 2010. 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 Bayliner 204 Ski N Fish 2009 carries 37 gallons versus 28 gallons in the Bayliner 315 SB 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 Bayliner 315 SB 2010 is rated for 10 passengers, while the Bayliner 204 Ski N Fish 2009 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Bayliner 315 SB 2010 could be the deciding factor.