I am not an expert, more of it, I am not an expert at all, but I think the rule works: A 比 B + Adjective 飞机比汽车很快。 Hope it helps ;)

今天的天气比昨天好，我的钱比你多，我的年龄比你大，我住得比你远，和跑步相比我更喜欢游泳……

你好！我很想回答你的问题，但是我实在是没看明白你想问什么？

比 alone means "than"; but compare means 比较 | 相比 | 比喻为 | 对照. that is why your question doesn't make sense.