I think I'm coming in at..
1. MI2
2. CMI
3. MI1
4. RMI
5. TMI
6. EMI
Obviously early days for Return, maybe it could switch with MI1 but can't see it ever displacing MI2 or CMI for me
I don't have much, maybe just MI1 and 2 boxed. I do have a rubber chicken signed by Ron Gilbert, but sadly in the 15 or so years the rubber has started to crumble.