In an effort to get some discussion going here, I am putting up this post! The question is in the title. I tend towards the following:
Frigg: really the goddess I connect with most, as family is an important thing for me. I don't adhere to any kind of patron concept, but if I did, Frigg would be the one. She is one of the few beings I've made an oath with.
Thor: the idea of the protector and friend of humanity is powerful. Always ready to lend a helping hand.
Odin: the lessons Odin has taught me are painful, but necessary. Often like being hit with a truth brick to the face. This is my experience when I delve deep into the worship of Odin.
Freyja and Týr: I tend to connect with them on a less personal level, but I do consistently make offerings to them.
I also sometimes venerate Eir, and right now I'm focused on the dísir that binds both sides of my family together.