When two boats share the same hull type — in this case both the Malibu 21 LSV 2010 and the Malibu 247 LSV Wakesetter 2010 are modified vee designs with fiberglass 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?
Both boats share a closely matched power ceiling — 505 hp for the Malibu 21 LSV 2010 and 505 hp for the Malibu 247 LSV Wakesetter 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 Malibu 247 LSV Wakesetter 2010 carries 87 gallons versus 46 gallons in the Malibu 21 LSV 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 Malibu 247 LSV Wakesetter 2010 is rated for 16 passengers, while the Malibu 21 LSV 2010 caps at 12. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Malibu 247 LSV Wakesetter 2010 could be the deciding factor.
Bottom line: Choose the Malibu 247 LSV Wakesetter 2010 if your priority is putting more people on the water — it handles 16 passengers and at 24,6 ft it has the deck room to back that rating up comfortably. The Malibu 21 LSV 2010 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 12 that costs less to run day-to-day.