With Panda, which is more important, traffic or quantity?

[nicole.healthline]

If you were to prioritize how to fix a site, would you focus on traffic or quantity of urls? So for example, if 10% of a site had thin content, but accounted for 50% of the traffic and 50% of the site had a different type of thin content but only accounted for 5% of organic traffic, which would you work on first? I realize both need to be fixed, but am unsure of which to tackle first (this is an extremely large site).

Also, I am wondering if the simply the presence of thin content on a domain can affect a site even if it isn't receiving any traffic.

[iAnalyst.com]

I would focus on the thin content that accounts for 50% of your traffic. From what I've seen Panda update may consider what visitors do when they get to your site, ie; high bounce rates, low page views, etc can negatively effect rankings. Focus on the pages that already get traffic and improve their experience and Google will reward you.