What can be called as an ideal birth chart?

First off, there is no such thing as an ideal birth horoscope. Each and every human being God creates is unique.

In spite of that, if wordly prosperity is your sense of what is ideal to have on this earth, then, a birth chart with all the natural benefics in the kendra and/or trikona houses, 1, 4, 5, 7, 9, & 10, and all the natural malefics in the upachaya houses, 3, 6, 10, & 11, will be the best one.

If your concept of the ideal horoscope is one which holds the promise of a God-loving,holy, sacrificial, heaven-bound life, then, a horoscope with all the natural benefics in the dusthanas or evil houses, 3, 6, 8, & 12, and all the natural malefics strongly positioned in the kendras, 1, 4, 7, & 10, will be the perfect one.