When two boats share the same hull type — in this case both the Crest 230 Superfish - C4 Fish 2011 and the Crest III XRS RE 20 2007 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 Crest 230 Superfish - C4 Fish 2011 measures 23,3 feet overall (2011), giving it roughly 21,3 additional feet of deck space compared to the Crest III XRS RE 20 2007 at 2,0 feet (2007). At 2 555 lbs and 2 615 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
Both boats share a closely matched power ceiling — 115 hp for the Crest 230 Superfish - C4 Fish 2011 and 115 hp for the Crest III XRS RE 20 2007. 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.
For family outings this is probably the sharpest distinction between the two. The Crest 230 Superfish - C4 Fish 2011 is rated for 15 passengers, while the Crest III XRS RE 20 2007 caps at 13. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crest 230 Superfish - C4 Fish 2011 could be the deciding factor.
Bottom line: Choose the Crest 230 Superfish - C4 Fish 2011 if your priority is putting more people on the water — it handles 15 passengers and at 23,3 ft it has the deck room to back that rating up comfortably. The Crest III XRS RE 20 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 13 that costs less to run day-to-day.