I think number of relevant followers is more important than anything else. What's the use of PR if it doesn't convert in the end.
I'm not sure if it helps or not, but I've received a few thousand visitors because of some tweets I posted with good keywords. Mostly, I think it's because they searched on Twitter for something, but than I check Google for that keyword and I see that I'm on one of the first 5 spots. Thanks to Twitter.
My account has Pagerank 5, I don't know if it actually helps or not -- but at least it converts to traffic
|Nico Lawsons - Quality Web Hosting at WiredStorm
|cPanel with Softaculous and 24/7 Email (Ticket) Support & Live Chat