When comparing ice cream for quality, but the ingredient list looks the similar, compare the weight of a serving on the nutrition label. Denser is better. The gums and fillers used in lower quality ice cream are lighter than cream and eggs.
If one says a serving is 1/4 cup (65g) and the other says a serving is 1/4 cup (73g), get the 73g one. They may both have some fillers, but the denser one will have less.