Both the Skeeter 21i 2012 and the Skeeter ZX 20 Bay 2011 are modified-V designs, both built in composite, so 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?
On paper these two are close siblings in the size department - Skeeter 21i 2012 at 21,0 ft versus Skeeter ZX 20 Bay 2011 at 19,7 ft. Weight tells a clearer story for trailering families: the Skeeter 21i 2012 tips the scales at 1 930 lbs - 180 lbs more than the Skeeter ZX 20 Bay 2011 at 1 750 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 300 hp, the Skeeter 21i 2012 has a 150-hp advantage over the Skeeter ZX 20 Bay 2011's 150-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Skeeter 21i 2012 carries 50 gallons versus 45 gallons in the Skeeter ZX 20 Bay 2011. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 5 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.
Bottom line: Performance buyers should lean toward the Skeeter 21i 2012 and its 300-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Skeeter ZX 20 Bay 2011 with its 150-hp rating is the more economical daily driver.