Both the ThunderJet Bulldog 2010 and the ThunderJet Denali 2009 are modified-V designs, both built in aluminium, 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 - ThunderJet Bulldog 2010 at 17,0 ft versus ThunderJet Denali 2009 at 20,0 ft. At 2 500 lbs and 2 500 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.

Both boats share a closely matched power ceiling - 200 hp for the ThunderJet Bulldog 2010 and 200 hp for the ThunderJet Denali 2009. 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 Denali 2009 carries 50 gallons versus 32 gallons in the ThunderJet Bulldog 2010. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The ThunderJet Denali 2009 is rated for 6 passengers, while the ThunderJet Bulldog 2010 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the ThunderJet Denali 2009 could be the deciding factor.