Yes, I know, I did something similar to this earlier this year, but I wanted to refine this a little to be more fair. Both of these episodes are EXCELLENT Four Star out of Four Star episodes, and yet are spectacularly different in as a Trek tribute. One's a drama; one's a comedy. One's about the Trekkian philosophy; the other's a loving nostalgia-fest.
And I think comparing these two episodes *really* shows where the Trek franchise's future is going (of course I could be wrong).
(Note: Let's try not to make this a TNG vs DS9 pissing contest).