IMHO as a newbie (5 finds in 6-7 tries) I would like to have a dead giveaway hint available. I have found it pretty frustrating a couple of times not being able to locate the cache, especially when conditions are not very favorable (hot, humid, snowing, raining, cold, etc...) or after a lengthy hike. I like the idea of a multi-tiered hint option so that I could confirm that I'm in the right general area first, then if I still needed help, a little more info, and then a third dead giveaway. Since the hints are coded, people don't have to use them if they choose not to. I just find it frustrating to come away without a find. Besides, it would be a good way to confirm if the cache is gone or not.
Another thing that I personally find frustrating is people who give misleading clues to throw subsequent cachers off the path. I don't want spoilers but I also don't want to be deceived either. I'm sure some folks like that and its fine but I've been a little frustrated at times.