When two boats share the same hull type — in this case both the Allison XB-21 BasSport 2+2 Tournament Elite 2013 and the Allison XB-21 ProSport 2013 are modified vee designs with composite 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?
On paper these two are close siblings in the size department — Allison XB-21 BasSport 2+2 Tournament Elite 2013 at 21,2 ft versus Allison XB-21 ProSport 2013 at 21,2 ft. At 14 lbs and 13 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.
The power gap is worth calling out. Rated to 510 hp, the Allison XB-21 ProSport 2013 has a 285-hp advantage over the Allison XB-21 BasSport 2+2 Tournament Elite 2013's 225-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 36 gal and 36 gal — so range won't be a tiebreaker here.
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.
Bottom line: Performance buyers should lean toward the Allison XB-21 ProSport 2013 and its 510-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Allison XB-21 BasSport 2+2 Tournament Elite 2013 with its 225-hp rating is the more economical daily driver.