BASICS is a good episode - the only two things I don't like about it are Hogan's death and Janeway's order to eat worms. Yuk ...
Whenever I watch this one, I always think of how I wish Suder could have been kept over the long term. His chemistry with the Doctor was at least as good as his chemistry with Tuvok and it is nice to see that the mind meld had its consequences - a change for the better.
In contrast to you, I also liked the aliens. The whole idea of even the "primitive" men having to learn to cooperate with the aliens was brilliant, I thought.
And when Voyager appears at the end ... it's always a touching scene.
FLASHBACK is a fantastic episode in my book - with Janeway, Sulu and the others. We also learn something about Tuvok's past - basically how much he matured due to having become a parent. This was thought-provoking (I, of course, can't know it because I'm gay

). The virus was a good idea and also how the two nebulae connected the two centuries/stories. When I watch episodes like this, I often wish I'd know TOS a little better (never seen it except for a few eps).
THE CHUTE to me is an episode that would do a lot better on DS9 - that's the show with the dark tone. Still, as you also mentioned, it's nice to see a Tom-Harry episode - as a gay man I tend to read a bit more into it than just friendship ...

The last time I watched a convention on YouTube (don't ask me which one, I don't know), Garret Wang said about this episode that there was one scene when Robert Duncan McNeill whispered into his ear: "O, how I hate when I'm not the hero" - or something along those lines ...
These are three (altogether four) very different episodes but I think they embody the essence of Voyager all the same: a sense of family, a sense of belonging - something I have never seen to this extent on any other TV-shows (certainly not on Star Trek). The way the Doctor interacts with Suder ("One hologram and one sociopath may not be much of a match for the Kazon, but we'll have to do.") and when he later praises him for his achievement ("You would have been proud of him, Mister Tuvok"); the way Chakotay takes his leave of Seska - also how he interacts with his father and later how this family relationship is mirrored in his relationship with his extended family (Voyager); the very fact that Janeway backs him when he can't decide if he can go after "his" son or not; Janeway's trying to help Tuvok by subordinating herself to a Vulcan mind meld right after having seen some of the consequences a few months before in MELD; Janeway's being nostalgic for Kirk et al; Tom's forgiveness and basically love for Harry ("You want to know what I remember? Someone saying, this man is my friend. Nobody touches him. I'll remember that for a long time.") - these are exactly the things that make these episodes (just like most of the others) outstanding to me.