I would recommend getting the 16 for the same price. If nothing more than years from now, it will probably have a slightly higher trade in price than the 15. Also, the upgraded transmission in the later model 16s would be more desirable.
In late April, we went to compare the 15 364TS and the 15 Thor Challenger 37TB. When we got there, they had just sold the 15 but had a 16 that had just come in. Same price, etc. I only wish that they had put the 6 speed auto tranny in at that time.
The 364 provides a lot of bang for the buck. I honestly cannot think of a different floorplan/motorhome that I would prefer over this....other than a diesel without having to pay a diesel price!!
2016 Forest River Georgetown 364TS