When two boats share the same hull type — in this case both the Alumacraft PF170 2007 and the Alumacraft Pro 175 2007 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 90 hp, the Alumacraft Pro 175 2007 has a 30-hp advantage over the Alumacraft PF170 2007's 60-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

Both boats are rated for 4 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.