You forgot the most important two (in my opinion):

- the ground clearance of your bottom bracket
- how much you want to lean over in the corners

I'm used to my motorbike where I can (and do) almost lean 90 degrees before it hits the road, and even then the footpegs just fold up to give you a few more inches of clearance.

If I haven't ridden a bicycle for a while, I almost always strike a peddle to the ground within the first few minutes.