The Sylvan Avenger 1800 SC 2006 vs Sylvan Mirage Fish 820 4-PT 2012 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

The power gap is worth calling out. Rated to 150 hp, the Sylvan Avenger 1800 SC 2006 has a 60-hp advantage over the Sylvan Mirage Fish 820 4-PT 2012's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sylvan Avenger 1800 SC 2006 carries 31 gallons versus 24 gallons in the Sylvan Mirage Fish 820 4-PT 2012. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 6 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.