What is the difference between the Anglican Church, the United Church of Canada, and the Presbyterian Church?

In Canada, three of the largest Protestant Christian denominations are the Anglican Church of Canada, the United Church of Canada, and the Presbyterian Church in Canada. I understand that each of these churches has a difference governing structure, but what are the ideological and theological differences between these denominations? Is one considered to be more progressive or conservative than the others? Are there any other unique differences between them. All three churches seem like highly similar, mainstream Protestant denominations so I was having trouble figuring out what the differences were between them.