When two boats share the same hull type — in this case both the ThunderJet Alexis 2009 and the ThunderJet Bulldog 2009 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?
The power gap is worth calling out. Rated to 325 hp, the ThunderJet Alexis 2009 has a 323-hp advantage over the ThunderJet Bulldog 2009's 2-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the ThunderJet Bulldog 2009 carries 32 gallons versus 5 gallons in the ThunderJet Alexis 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Bottom line: The ThunderJet Bulldog 2009 at 17,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The ThunderJet Alexis 2009 at 2,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.