I see quite a few votes on the poll, but can anyone report back with their results and also tell a little about the bike? The poll results don't mean much unless we know what kind of bike and parts are involved. A track frame with 160mm cranks and eggbeaters is going to get a much higher angle than a road conversion with 175mm cranks and BMX pedals, etc.
As I posted originally, I measured 35 degrees with my Raleigh road frame conversion. 700x23 tires, 165mm cranks, and fairly narrow SPD-type pedals.
Tag; you're it.