I recommend starting out on the bottom right side of the map. It is usually drier over there.
My favorites are 47, 43, 45, 49, 42. Also if it's wet you can run 55 bc it's mostly all rock except for the beginning so it's usually not affected by the rain much. It is very short though, like 150 ft or so.
41 can be fun but it is an easy trail, especially for 37 and above. It holds a lot of water at the beginning and the bottom of the hill so plan accordingly if it's wet. The good news is it leads you to a couple of good climbs to try if it's dry ( like 64).