TrippLite first, then APC. I've been in situations where "commercial power" was a joke and EVERYTHING electronic needed a surge protector or UPS. Since you can get one of these portable/traveler suppressors for something like $20 or less, it's a good investment.
But as cgc suggests, make sure whatever one you get, that it has a good warranty-which both TrippLite and APC do. They also have a nice history of properly honoring their warranties and public images to uphold, so if something does happen, they're really likely to pay up.