If your wood is BONE DRY, and you expect dry warm weather for an entire week after painting (NO rain or dew etc), and these are all non-foot-traffic surfaces (like window trim), and there are no exposed areas of the wood that could absorb moisture (like end cuts that are inaccessible to paint but water could get in there), then go with oil, even though it's messier to deal with.
Otherwise, use a high quality 100% acrylic latex; the glossier the better (as far as durability is concerned; if you need to hide imperfections then less glossy is better).