In the world of towing those are two entirely different vehicles:
The Subaru, a very popular vehicle hereabouts, "seems" to have a tow rating of 2700-3000 lbs BUT, still has the usual Subaru reduced hitch capacity of only 200 lbs which, for practical purposes, limits towing weight
to about 2000 lbs. or about 10% of the total weight
. These numbers pretty much limit you to the 13' FGRV's. One member pulled a 16' FGRV with a Subaru and experienced higher than expected maintenance costs.
The Honda Pilot is a much more robust vehicle for towing with towing limits of 3500-5000 lbs depending on model and options selected. I could not find a hitch weight
limit, you will have to look in an owners manual or contact Honda customer service (not a service or sales rep) for that information. Just those specifications will give you a much wider selection now, and well in the future should you want to get something a bit bigger.
In both cases mentioned, always read the owners manual
for the specific vehicle you are interested in buying. Not all versions of a specific model may be the same and many will specify mandatory trailer brakes
for towing over a specific limit, sometimes as low as 1000 lbs.
And... DO NOT use aftermarket hitch specifications to determine towing capacities. Those specs apply only to the hitch, not to the vehicle to which it is attached. The mfgs. specifications are considered a fixed value.
Good Luck and, remember, see it (specifications, prices etc) in writing, before you sign anything......