So, I am trying to decide if it is worth it to switch some stuff.
Right now I have an '85 Torpado super Strada with Sora (3500) 9 speed, a 2001 Lemond Nevada City with Ultegra 11 speed (currently set up as 10), and a Felt Z85 with 105 10 speed.

What I am thinking about doing is:
Move the Ultegra to the Torpado (it is my newest, but favorite bike).
Move the 105 to the Lemond (it is never going anywhere).
Move the Sora to the Felt (may end up selling).

I know what they are like (they are all mine). I am not ever going to be at a level where it makes a difference. I'm just wondering if it makes any sense to do this? Or if it is just my natural desire to tinker with stuff.

If you had the opportunity, would you move stuff around so the "higher" level stuff is on your main rider?