Cyrez,
If you're looking for a career/job change, I think Haas has a bigger presence / career services in the Bay Area (particularly as you mentioned the VC center) since it also caters to the full time program which is top 10.
If you're planning on staying on the West Coast, I would say that there is no difference and the Haas and Anderson network may actually be stronger if we're just talking about NorCal and Socal. Bear in mind that Haas, Stanford and Anderson have more alumni at Google and other Bay Area companies. The Wharton professors are world class and top notch, but I'm not sure how many VC connections, how much research they do on VC related activities since they are all from Philly.
The coursework is also important - I'm not sure of Wharton's course offerings that are VC focus.
The Wharton name alone does carry its weight in gold, but you'll need to ask if it alone enough to reach your goals or will you need the network, the programs, and the career services in order to make the move.
I would say the Wharton program wins in pure finance/valuation, and it has more networking at the Fortune 500 level.
Just my 2 cents.
If you're like me and are considering both programs - you should go to the welcome events and do more campus visits before you make a decision.
Hope this helps!