The easy trails should be fine for 2wd. They were in bad shape when we were there a month ago but they were in process of grooming them with a bucket loader and steamroller so most should be perfect by now. Either way there are plenty of fire roads that any quad can go through.
My daughter rides a Honda TRX 250 two-wheel drive and had a blast with no problems at all. There's usually always a way around bad mud holes.
Basically any off road vehicle you have will work but some trails get either really rutted or might not allow certain vehicles so it all depends
I was there today and the trails they are grooming are in good shape. There are plenty of trails that a two wheel drive quad can negotiate. The only time I use 4wd is when there is mud or when I'm in the creek.
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