Either way, the answer is NOPE NOPE NOPE NOPE. Well, OK... if I had to choose, I think I would go with the grizzly bear. Maybe I could try to quietly hum or sing a lullaby, and just pray that it would keep the bear calm. With the spiders, you'd just be completely at their mercy, and if you smelled funny to them or bugged them (ha ha) in any way at all, they could easily bite you and kill you.

By the way, I have always thought the music from Chopping Mall would work really well in a movie about killer spiders.