Moderators, you can close this thread.
I decided to go with the B & W Foldon Case. It appears to give the best protection and I'll just deal with the weight and size.
As for those that put their bike in the overhead storage; although it's rare, I've seen overhead storage doors pop open and I'm not going to put 27 lbs. of steel with pointy edges over my, or someone else's, head.
Thank you to those that replied.