Selene's have a long history of maintaining good resale value, I am not as familar with how well the North Pacific's hold their value (I suspect they also do well, especially in the PNW).
Both boat have a fair number of hours, not a concern if good maintenance was done. Often Selene's have a heavier duty engine which could have pushed the engine hour situation in favor of the Selene, but that Selene appears to have a recreational rated Cummins 330 hp engine (a good engine, but not a QSL or more industrial rated Cummins).
The QSB 6.7 in the NP is likely also consider a recreational rated engine. We had QSBs (5.9 version) in our previous boat and really liked the bit better fuel efficiency of the electronically controlled common rail diesel. Importantly, the 6.9 QSB in the NP is setup at the lower end of the HP rating for marine use of that engine (up to 550hp) - which would seem to favor the NP in terms of engine configuration.
$200k is a big price difference, but so is 2016 versus 2003...
If the price difference isn't an issue budget wise, I would probably go with the NP - but in the end it would come down to which boat I liked better, had better maintenance history, and suited my needs better.
In the end, it is a very personal decision - will be curious to see which way you go (if either of these boats).