Yup, for the vast majority of time spent on land, I like a plain edge. I've tried both serrated and partially serrated knives in the past and, after just a short time of hard use, they turn into plain edge knives anyway (as the serrations tend to break or wear away). I find it better just to start with a good plain edge and keep it sharp.
Now, when I'm on my boat or swimming/diving I carry a fully serrated blade. Simply because, out on the water, 99% of the time I'm cutting a line/rope. With that being the case, serrated edges work really well on line/rope.