I voted for #1, but in particular, it's when buses are behind me and I just know they are going to cut me off, then sit diagonally across two lanes while loading and unloading passengers sometimes making it difficult to get around them without having to get into oncoming traffic. Then once I pass, they do the same thing again. They go fast enough to cut me off but slow enough for me to always catch up at the next bus stop. I guess it's not as much of a safety issue as it is time consuming and exhausting.

Another concern is being nudged so close to a curb that I start to straddle the hump or gap that marks edge of the pavement and beginning of concrete. When getting a tire pinched becomes a possibility, I take the lane.