Depends on what I want the cam for, digi cam pics can be pretty big, so if i'm just doing an overall shot, i'll use a nokia n73 mobile phone. If I need a close up on macro for some flowering shots i'll use a ricoh cam.
canon or sony for anything under 500.00 dollars. Sonys have a carl ziess lens so you dont need as many megapixels to get as good of a shot. The canons are a much better camera over all though. Also the canons cost less to use.(Sonys require a sony mem stick, canons can use any cards)