It all sounds very conflicting, doesn't it? I think the biggest lesson we've learned here is that there is no such thing as a 'one size fits all' diet plan. Everyone is unique and must find what works for them, which probably won't work for the person sitting next to them.
Part of the reason for that is that everyone starts at a different place and has a different goal, and i'm not just talking about the numbers on the scale.
1. Eating every 3-4 hours works well for a lot of people. But not all people want or need to eat that often. Some people find it helps them to stay on plan because they feel satisfied more often and are less likely to eat something they shouldn't. As far as metabolism, though, it might be a myth. You will see it recommended as such, but I've never seen a study that showed it actually had an effect on metabolism. In fact, a published study at Vanderbilt University showed that rats who consumed frequent meals did not have an increase in metabolism. If the same number of calories were consumed either as 10 small meals or 2 large meals, the weight loss was identical.
2. 1200 to 1600 may or may not be right for you. You always want to start on the higher end because as your body weight decreases, you will probably need to reduce the amount of calories you consume because your body will need less. You need some wiggle room. We usually recommend starting at 1800, give it a week and see what happens. Drop down a little at a time until you start to lose 1 to 2 pounds per week. If you start out too low, you are more likely to run into problems later. We don't support very low calorie diets here and really recommend at least 1200 calories at minimum.
3. Cardio vs Weights. Both are important, but the scale may tip in one direction or the other depending on your unique body needs and your long term goals.
100 cal snacks - Some people find them useful. Others find them too tempting to stop at one. Still others cringe at the ingredient lists and would rather snack on apples or grapes or a cheese cracker.
Veggies - Are the veggie meals in a box the type in cheddar cheese sauce?

Frozen vegetables are just as good as fresh, it's just what you do with the veggie that makes the difference
