Which is Best All-In-One PC of Lenovo?

[DTH Fan]

Guys

I'm planning to buy an All-In-One PC and I'm confused between Dell and Lenovo brands. I have picked a Dell model but selecting a model from Lenovo is very difficult.

There are so many series on Lenovo website such as A, B, C, H, M, etc and I cant understand which series is best among those?

Please help me. I want to know which series and model is the best among all Lenovo AIO PC.

Thanks in advance.