I'm 2-discs into Season 4.
Found Season 3 to be really good with more consistently interesting and capturing episodes and less fluff.
Season 4, of course, brings us Worf who was used very well in DS9 and starts with what I'd probably say is my second-favorite Star Trek episode of the entire franchise.
"The Visitor."
(First would be City on the Edge of Forever.")
Seriously, it's a damn-perfect episode. Great performances by Tony Todd, Avery Brooks, Cirroc Lofton it's truly a great, great, episode and any problems I could point out to it is getting damn nitpicky. (Starfleet in the episode's timeline didn't change their uniforms from the TNG style until sometime well after Jake was in adulthood? But do it in the regular timeline within the next year? Did Sisko have something to do with the uniform change? Well, apparently he's also the sole reason the war with the Dominion happens...)
Finished "Little Green Men" last night, a good fun episode. One of the few "Ferengi Episodes" I can stand.
Secondary characters still tend to be more interesting to me than the primary ones. But really when thinking about it the only main character I just don't get the feels for is Sisko. Everyone else of the main cast I really like for various reasons. But Rom, Nog, Garak, Dukat, and now we have Leeta! All fun and interesting characters.
Rewatch continues.