When two boats share the same hull type — in this case both the Avalon 20 ft. CT - Fish N Fun 2011 and the Avalon Excalibur 25 ft. 2009 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 ft. 2009 measures 25,0 feet overall (2009), giving it roughly 23,0 additional feet of deck space compared to the Avalon 20 ft. CT - Fish N Fun 2011 at 2,0 feet (2011). Weight tells a clearer story for trailering families: the Avalon Excalibur 25 ft. 2009 tips the scales at 245 lbs — 227 lbs less than the Avalon 20 ft. CT - Fish N Fun 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.
The power gap is worth calling out. Rated to 150 hp, the Avalon Excalibur 25 ft. 2009 has a 35-hp advantage over the Avalon 20 ft. CT - Fish N Fun 2011's 115-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Avalon Excalibur 25 ft. 2009 carries 36 gallons versus 24 gallons in the Avalon 20 ft. CT - Fish N Fun 2011. 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 Avalon Excalibur 25 ft. 2009 is rated for 13 passengers, while the Avalon 20 ft. CT - Fish N Fun 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 ft. 2009 could be the deciding factor.
One place where both boats are genuinely identical is tube construction: both run 2 aluminum tubes at 25" diameter. That shared spec means stability and buoyancy characteristics are closely matched — the ride difference you'll feel between them comes primarily from deck length, weight distribution, and motor choice.
Bottom line: Choose the Avalon Excalibur 25 ft. 2009 if your priority is putting more people on the water — it handles 13 passengers and at 25,0 ft it has the deck room to back that rating up comfortably. The Avalon 20 ft. CT - Fish N Fun 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.