Haha! Great idea for a thread.
I have two airlines Im not comfortable with flying for what might be seen as odd reasons.
Air New Zealand. Why? Stupid marketing. Final straw when they signed up Snoop Dogg in promotions and a sleazy drug addict looking Brazilian puppet making double entendres about things like oral sex. Im pretty liberal but I dont think you could get any less bottom of the barrel there.
Unfortunately my employers flies me on Air NZ regularly.
Southwest. Why? For the most real oddest of reasons. Color scheme. Believe it or not, I just hate the livery, it hurts my eyes. Seeing all those planes parked up at Terminal 1 at LAX really offends my sense of aesthetics.