When two boats share the same hull type — in this case both the Princecraft Platinum SE 186 2012 and the Princecraft Xpedition 170 BT 2012 are deep 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?

On paper these two are close siblings in the size department — Princecraft Platinum SE 186 2012 at 18,5 ft versus Princecraft Xpedition 170 BT 2012 at 16,9 ft. Weight tells a clearer story for trailering families: the Princecraft Platinum SE 186 2012 tips the scales at 1 545 lbs — 1 448 lbs more than the Princecraft Xpedition 170 BT 2012 at 97 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The power gap is worth calling out. Rated to 175 hp, the Princecraft Platinum SE 186 2012 has a 100-hp advantage over the Princecraft Xpedition 170 BT 2012's 75-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 4 gal and 2 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Princecraft Platinum SE 186 2012 is rated for 8 passengers, while the Princecraft Xpedition 170 BT 2012 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Princecraft Platinum SE 186 2012 could be the deciding factor.