I'm all for moderation. As you point out, a "diet" is a short-term affair. A lifestyle change is what many of us need--one that we can live with forever.
I personally have chosen to abstain from any desert-type items as they are a particular trigger for me. Anything else, though, is fine--just in moderation.
I do like to eat at least 100 grams of protein a day and try to eat "good" foods including fruits and veggies every day. I also do best when I limit simple carbs so I eat whole wheat bread and the like.
47 M 5'8"
May 4, 2010...... 440? lbs. (Start FitDay Size 60 Jeans)
June 19, 2010.... 393 lbs. (First Weigh-in)
June 19, 2011.... 229 lbs. (164 lbs. gone in one year :-)
Current Weight... 185 lbs. (Size 36 Jeans)
Next Goal 169 lbs. (07/04/12)
Ultimate Goal 165 lbs. (12/31/12)
The best exercises for weight loss are Fork Putdowns and Table Pushaways.