After deciding on film format and the degree of weatherproofness you desire, it's time to sort through the options you'll encounter. One option is likely to be a zoom lens. Many incorporate some plastic in the lens, which reduces their sharpness and color contrast. It could be too automatic. Find out how much control the camera allows you.
Active systems are more accurate in low-light situations, less so when shooting through glass.
Generally, both yield very good results. Get out your scissors instead. Hold each one in your hand. Tiny controls on lilliputian cameras can be difficult to manipulate. Some cameras force you to stand at least three or four feet from your subject, which precludes good wildflower photos.