I have been towing our 13í Scamp
with a FWD Pilot. There have been a couple of times I missed AWD, each time on a gravel road ascending a grade while towing. I was able to disable the stability control and allow some wheel spin to get through.
Downside is it adds some initial cost (which youíll usually get back on resale) and additional maintenance (rear differential service every 30K).
Tough call if you donít live in the snow belt. I got a really good deal on a lightly used unit that happened to be FWD. I drive vehicles into the ground, so resale isnít too important.
The larger the trailer, the more youíll want AWD, so I vote yes in your case.