What is more important for relevent ads - title, kw meta, description?

[katdadi]

I've been working very hard to get the right information in my html to get relevent ads but with no success on two websites. Anybody else having these problems. Periods (.) seem to throw them off a little.

[Sobriquet]

description

and page text.

[mike schmitz]

I've often felt that the page URL was a great way to fine tune your ads. Once the page copy is getting the right type of ads, I use the page URL helped stear the ads from "widgets" to "buy a widget". That way, you can steer the CPCs a bit.