Back to reality. Any entrepreneur raising capital from a venture firm should recognize that venture capital returns over the past decade lag all of the major domestic stock indexes by a substantial margin. If you look at returns from even the most successful of funds, there's usually not a lot to be impressed by. In some cases, one or two investments account for most of the returns.
Why does this matter? Simple: it strongly suggests that the value-adds so many of the firms try to differentiate themselves with can only do so much to produce real value. If this wasn't the case, you'd expect all that special sauce of the top firms to ultimately be reflected in their returns, which again are generally unimpressive.
There is an excess of capital in venture capital today, and you have lots and lots of firms chasing deals. The wisest entrepreneurs who need funding will take advantage of this to raise capital on the most advantageous terms they can negotiate. Agreeing to less favorable terms based on the pedigree of the source of the funding is unlikely to confer any benefit.