Print off the trail map and choose the best bits.
1.4, 1.5 make 1 good descent. 1.6 is switchback climbs with pedally bit after. 1.7 is hard, pedally, and very open. 1.1 and 1.2 are very pedally singletrack. 1.3 is slightly downhill with a bit of up. 1.8 is good pedally descent with a nice fast bit at the end. 1.9 and 1.10 are closed for felling, but look at the map and choose a different way down.
Numbers relate to the singletrack number, not the signpost markers. 1.1 is the first singletrack, 1.2 the second, etc)
Loop 1 is never as wet as loop 2 which turns into a river. But if you want an easy bail out option if you get tired/cold, don’t do loop 2 as it takes you a fair way away from everywhere. You can roll back to the village from anywhere on loop 1.
Marin will be drier. but lots more fireroad.