I choose the spirits I work with based on the job I wish to accomplish, which includes angels as well as demons, and other spirits/egregores. The only angel I have felt particularly drawn to in a general sense is Metatron, and that was only after feeling his presence in the DoM opening ritual and becoming fascinated. In general I have felt a stronger draw to certain demons than to certain angels.
They are each unique in their own way and the only commonality in their energy I’ve personally identified is they feel more celestial, and they feel kinda like they have traveled a great distance to be in your presence, whereas demons feel “closer” to the material plane. Again, just my own experience.
They differ on an individual level the same way demons do. Some feel more serious and businesslike (Mahashiah seemed this way to me), some feel stern and proud, some inspire awe, some are gentle and calming.