Both the Starcraft Marine 168 Pro Troller 2012 and the Starcraft Marine SL 12 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?
The power gap is worth calling out. Rated to 60 hp, the Starcraft Marine 168 Pro Troller 2012 has a 50-hp advantage over the Starcraft Marine SL 12 2009's 10-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Starcraft Marine 168 Pro Troller 2012 is rated for 5 passengers, while the Starcraft Marine SL 12 2009 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Starcraft Marine 168 Pro Troller 2012 could be the deciding factor.
Bottom line: Choose the Starcraft Marine 168 Pro Troller 2012 if your priority is putting more people on the water - it handles 5 passengers and at 16,0 ft it has the deck room to back that rating up comfortably. The Starcraft Marine SL 12 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.