MILK MILK MILK chololate.
Blech on dark chocolate. My hands down favorite is Ghirardelli, but Hershey's Symphony and Cadbury make pretty durn good cheap milk chocolate. I love eastertime when Cadbury brings out their candy eggs, I eat them like nobody's business. I only use milk choc chips in my cookies too, so there
In general, I don't like bitter anything. My sweet tooth is T-Rex sized. There should be a poll on this, but I've never done one.