Maybe I am the only one who find this annoying, but I found that using TAA as AntiAliasing option, rain windshield effect is thinner and a lot less visible than with any other AA setting. And I don’t like to see sawtooth when my system can deal with the higher AA setting.
I made some comparison shots some time ago, but with the last version seems to look just the same. Is more noticeable in a video, but for the upload limit, I don’t think I can show it.
Edit: apparently with the latest versions it looks just the same.
Rest of settings (effect looks similar)
Latest version, TAA
Other settings (mostly visible on the center part of the windshield, left to the compass)