I have been on all of them, and ranking them depends on what you rank by, i.e. most comfort, wanting to fly on them, still in service or not, etc...
I did LUX
and back on FI
's DC8. It was generally a nice flight (and of course I am happy having had the chance to fly on that bird before it retired), but it was pretty noisy, especially close to the galley.
I've been on the L1011 a few times with AC
and once on TS
- all very nice and comfy flights.
I did a few trips on the DC10 with DE
- and again, I loved them all!
Lastly, I think the B762 is the one that as most examples still in regular service (of the 4 mentioned), and I have been on a few with various airlines (also the 300).
Thus, just for the wish to fly them again, i.e. rarity, I'd go for
I love trijets!