Hello!! Apologies for the delay, hope you are having a good week! Here are some of my favorite aspects in composite:

Aspects to the Moon, especially the Moon-Mercury link, the Moon-Venus link and the Moon-Jupiter In general, having good aspects with the composite Moon will be beneficial to increase the affection, love, and emotional support of the couple. The first link mentioned could bring a telephatic connection, or a relationship that can oppenly talk about their feelings, while the second link bring a nurturing connection filled with love, and the third one a passionate one. The fourth one brings optimism, playfulness, cheerfulness, and a sincere need to make each other happy.

2. Aspects to Mercury (any aspect).

Aspects with Mercury in the composite could potentially increase the duration of the relationship. Why? Because communication is our basic tool to conect with people and see how compatible we are on a mental level along with seeing if both would have the compromise to talk to each other of their needs and interests.

Now, for me, the energy of Moon and Mercury are one of the most crucial points in a composite to see a potential relationship unfold for the long term. In relation to the rest of the planets and signs, I don't have a favorite since those energies will have a different impact on every person. For example, one of the best aspects to have in composite, according to many sources, is a Sun and Venus aspect (especially conjunction, trine, and sextile) because it grants a natural and genuine affection and love. Since I love to read astrological testimonies, I've found that some people with this aspect never felt something significant as many blogs say, so it's up to, not only the aspects and placements of the composite, but also how it touches each others natal charts to see how the relationship affects each other individually.

Having said that, I will add some things that I like to see in a composite chart:

The aspects and placement of asteroid Alma This asteroid could indicate what type of past life or past lives you had with your person. What you went through in the past. If it touches the personal planets of the chart, Vertex, the Axis, South Node, or North Node, it could indicate that you had an important or significant past life with that person.

Out of all the different war prizes, jewelry is his favorite

He falls in love/crushes easily, and he prefers men

His main attack is always to the shin

He has sensitive hearing

And if I were to give him an animal, it would be an axolotl