How to say 简单又明了，我会选你为最佳解答的。in English?

That's concise to me. I will pick you as the best answer.
这个concise的意思为“简要的”。
希望对楼主有帮助。

brief and clear

or

terse

Definitely, I'll take your answer as the best one.

I Will pick up yourbrief answer as the best one

simple and clear