When two boats share the same hull type — in this case both the ThunderJet Alexis Classic 2010 and the ThunderJet Bull Dog 20 ft. 2013 are modified vee 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?

Both boats share a closely matched power ceiling — 325 hp for the ThunderJet Alexis Classic 2010 and 320 hp for the ThunderJet Bull Dog 20 ft. 2013. 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. Fuel capacity breaks the other way: the ThunderJet Bull Dog 20 ft. 2013 carries 48 gallons versus 8 gallons in the ThunderJet Alexis Classic 2010. 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.