One thing I try to do for my people, and I appreciate when others do for me is to provide what I call "talking points" for people doing blog posts and pre-sell pages. I'm really not interested in being provided with a word-for-word, copy-and-paste post to use. I would rather have a bulleted list of 10-20 key points that I can work from and add a little personalized touch to my pre-sell pages. I don't wan't mine to have the same copy as everyone else's.
Doing this means that I include what the vendor believes are the key benefits to the user, but it also allows me to set up pre-sell pages quicker without having to think every detail through to the nth degree. What I really want to do on pre-sell pages is to give visitors a taste, but not the whole meal--and give them a compelling reason to click through to the sales page for more info.
Another thing is if the vendor has some kind of short video on their sales page, I can say, "Check out a video providing proof of exactly what I have told you here." That sounds a lot better than, "Click here to buy the product." A softer approach to get them to the sales page.
I just want to warm them up and want more info; I want the vendor to crank up the heat and close the sale.