I've never gone up to 36. Around 6 foot. 34 is the right bagginess.
I only wear regular cut jeans so I figure as long as you're under 70 it's not bad. Last time I wore slacks they were 32 and from a year or two ago and they really showed off my ass well. I had to wear it for a play, but I was only an extra but my poor bun was crushed.