Never tried the Vue, but am a daily Keurig user. We do, however, use the Cuisinart model and the largest cup choice is 12 oz, which was the biggest available when we bought it.
I just starting doing the brew your own. It actually is a lot easier than you would think. It is a reusable filter, so you just put a the coffee in (I fill it 7/8 full) and pop it in the holder (you actually remove the normal pod holder and this slips in that spot). My father who is a bit of a coffee nut (roasts his own beans kind of nut) came to visit and I was waiting for his reaction to the Keurig. I pulled out the never used brew your own insert and he figured it out and was quite happy with the coffee from his beans. You can definitely make the coffee stronger this way and you can have the convenience without being held hostage to the quality of coffee that is available.