Twilight Princess... Now that I am done with it, I'm not sure what to think.

It is, in my personal opinion, the most deeply flawed title of the main series (well, Spirit Tracks is up there if you consider it eligible). The direction simply does not sit well with me. I suppose it depends on what you want to get out of the game; for me, the overt sentimentalism, the cinematography, the art direction and the music all fail to impress. The tone is inconsistent as well, but that's mostly due to a sense of farcical self-awareness, which I do not mind.

That's not to say it is a poorly designed game, or that I don't enjoy it. It has elements to it that are quite well done, including some of the dungeons, the combat system (enemy and (especially) boss design does not live up to it, though), the writing and the theme.

The latter provides a reasonable justification of the parallelisms to Ocarina of Time and (more subtly) The Wind Waker that people tend to complain about. In more ways than one, the game is the antithesis of The Wind Waker. It presents an alternate course of history following Ocarina of Time, exploring the events of the adult timeline in a new way. But more importantly, it serves as a thematic counterpoint. Indeed, both games highlight the concept of a fate ordained by the gods, but the treatment is more ambivalent in Twilight Princess. I think the it is captured well enough in Midna's story - I doubt the irony of the ending is lost on anyone - but also in Ganondorf's character and the treatment of the Triforce.

Kid timeline, i'm assuming, where Ganondorf's initial victory in OoT never came to pass, given that, with sufficient warning provided by Link, Ganondorf was subdued even with the Triforce of power in hand

It's either that, or we are to believe that the timeline split occurred at Twilight Princess, and that The Wind Waker and onward simply represent a period where Link wasn't around for the events of TP

And i probably know what the "irony of the ending" is, but i can't think of it off the top of my head. Something to do with the fact that Midna, who ultimately proves unambiguously good, wilfully cements the segregation imposed by the Gods?

Pretty sure you mean child timeline here. Wind Waker was adult, where the Hero disappeared, while Twilight Princess was child, where Ganondorf was captured before being able to enact his plan.

Got to the end of OoT (VC edition) last night. Now I'm re-learning just how much I suck at Link to the Past. Died several times in the Tower of Hera alone. This is gonna be a long trip through the Dark World.

Still haven't progressed in Spirit Tracks, mostly out of spite.

You're at the good part, though. Except for the Boss of the Light Temple, everything after clearing the initial four temples is more fun than what preceded it. More ingenuous puzzles and more dynamic combat. Okay, there's a phase of the final boss that's pretty idiotic too, but there's no point in being spiteful about it at this point

Twilight Princess does indeed take place in the child timeline. What I wanted to communicate with that comment was that it also acts as a symbolic parallel to the adult segment of Ocarina of Time (hence the complaints about recycling old ideas/material). In a sense, Twilight Princess is the child timeline's version of those 'lost' events.

You are correct about the ending, as I see it. The irony of it is that, just as Midna began to care for the residents of the light world, she also came to realize that she was tasked with destroying the only link between them, and that this act was ultimately ordained by the gods. This fate, which Midna personally had to carry for the sins of her ancestors, certainly has a tinge of cruelty to it, though it is not necessarily unjustified or without merit.

Just finished Wind Waker. Brilliant final boss. Probably one of the best final bosses ever.

Man Hell yes. That whole final sequence is masterful.

Only one sticking point in the Master Quest forest temple. If any of you remember the well in the Forest Temple, that little hallway that you have to drain the water from and you find a Small Key in, apparently the switch to lower the water was under the water, inside one of the wells, and you had to shoot into the water to hit it

Otherwise i tore through it easily. Even with Phantom Ganon, every tennis run he actually got hit on my first return

Just finished the Master Quest, now i don't know which one continue. I'm mostly interested on playing again these:
A Link to the past
Link's Awakening
Twilight Princess

Which game do you recomend me?

I recommend to keep that order.