Wow! Interesting.
For me, simplicity is becoming the norm. I would go with number 1, but if financially possible I would not sell the O/D units. Never know, might need them, or change your mind.
As Lebaron said, I also have 3.55's, (always had trucks with 4.10's), the 3.55's are great, good acceleration (the 460 definitely helps!) and not too bad on the RPM's if you're not trying to keep up on a freeway. I have the C6. (So I'm the "old man" doing 60MPH!)
You can go into 4 Low for backing and other situations.
I appreciate your thoughts on the overdrives as I have thought it would be nice to have one. But well over 3 grand will buy a lot of gas!