Interesting topic!
I suppose I fall into the group who says that whatever you do, make sure enjoy the outdoors, but that bagging and tick lists are not for me.
I think, first and foremost, that at lot of it is down to your mental make-up. Like SouthDowns said, I'm also a contrary kind of person and will, even subconciously, aim to do things differently if I can. I have always preferred to make up my own walks from the map and in doing that some work better than others, but I have been places I wouldn't have gone otherwise and places far fewer people ever go. I like this particularly as much of our walking is confined to busy weekends and we don't like crowds!
Somehow, as well, the idea of walking a hill just because it is a certain height seems slightly illogical. Surely this, in it's own way, is just as arbitrary a reason for going as choosing all the
lowest points? Or, for that matter, the wettest, dryest, hottest, coldest, etc.
For my walking I am always happy to go whenever and wherever I can, picking something to suit my mood and the time available, and I'm equally happy with summits or canal walks, an hour round the block or an LDP. And when you are in big mountain country, where many of the summits are not accessable to walkers, you soon get to appreciate the value of being
amongst them as opposed to on them.
But for me the measure of a good walk should be quality first and foremost, and I'm sure that whether you follow my method, choose Wainrights or Muros or whatever, you get the same sort of buzz from it.
Which is the most important thing of all!