It really depends on what type of tourist you are. Personally, I always get a park hopper. Always! I never know when I might just decide to go to a different park so I don't want to be delayed by having to add a Park Hopper if I want to hop at the last minute.
I do, though, stay offsite and have most of my big meals offsite as well. Therefore, at whatever time I feel hungry I leave the park and drive to an offsite restaurant. Then when I come back, I might return to the same park for the evening or I might go to a different one.
If, however, you have had to make ADR's 6 months out, it is probably more useful to just stay in one park all day so you can plan your ADR's accordingly.
Disclaimer: One also has to take into account that I have a very short attention span. I get tired of one place fairly quickly so I tend to move around a lot more then most probably.