When two boats share the same hull type — in this case both the Avalon 20 ft. CT - Rear Fish 2011 and the Avalon Excalibur - 25 Foot 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 Avalon Excalibur - 25 Foot 2008 measures 25,0 feet overall (2008), giving it roughly 23,0 additional feet of deck space compared to the Avalon 20 ft. CT - Rear Fish 2011 at 2,0 feet (2011). Weight tells a clearer story for trailering families: the Avalon Excalibur - 25 Foot 2008 tips the scales at 2 174 lbs — 2 156 lbs less than the Avalon 20 ft. CT - Rear Fish 2011 at 18 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 — 115 hp for the Avalon 20 ft. CT - Rear Fish 2011 and 135 hp for the Avalon Excalibur - 25 Foot 2008. 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 Avalon Excalibur - 25 Foot 2008 is rated for 16 passengers, while the Avalon 20 ft. CT - Rear Fish 2011 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Avalon Excalibur - 25 Foot 2008 could be the deciding factor.
Bottom line: Choose the Avalon Excalibur - 25 Foot 2008 if your priority is putting more people on the water — it handles 16 passengers and at 25,0 ft it has the deck room to back that rating up comfortably. The Avalon 20 ft. CT - Rear Fish 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.