No, seriously, some help here? You are all very welcome to post your variations in viewers! 
Which Closed Sicilian variation do you think is best?
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P.S. Happy Easter everyone!
Thanks! Keep going with those suggestions (with possible visual explanations)!
I really don't wanna put pressure on you guys, but I'd like to see some other opinions either about what I wrote or regarding an existing opinion here (Estragon's opinion, in this case). 
Long time no see or hear! I thought I'd just ignore this topic and walk away, but I realized I should learn from others' mistakes as well as from my own. C'mon, anybody? Any opinion? Anything???
Well, it's got Nc3 and f4, but I'm interested in Closed variations with a Bg2 fianchetto, those are distinctively closed even compared to the Grand Prix Attack. Hmmm... I guess Spassky's system can be reached through transposition via the GPA???
Good news everyone! Instead of making you bug yourselves to exhaustion with this one, I decided to take up the Chameleon Variation, so I can play the Open OR the Closed Variation, depending on the variation on the 2nd move that my opponent picks!
The Chameleon System gives headaches to inexperienced and experienced players alike, if they aren't accurate with their opening play. The reasoning behind the Chameleon is that you delay your options, letting you play many variations. The Grand Prix Attack is immediately committing. I used to play the Chameleon to drag players I knew into variations where they would swiftly get lost. They know the Open? Closed or Larsen (GPA) type games. They know those? Open Sicilian type, pull them into a sideline or one of the dangerous main lines. Pretty fun stuff!
I don't know about that. I think the GPA can be pretty mean to someone not really sure about what to do, but not really dangerous for someone who learns its theory well. And these days you just can't expect a Sicilian player to be totally unprepared for the Anti-Sicilians. Besides, its character is different from the Closed Sicilian's, and you can learn a lot about KID from the Closed too! I mean, it's mostly a closed kingside vs. queenside race, whereas I could try and play the GPA for some tactical experience, but then the variation is already defined, and I can't get a chance to play a kind of Open Sicilian I like.
Generally said, I've got no problems facing the Sicilian now, I play the Open Sicilian and use several systems that I reckon work out for me well enough. But before I developed some sense for it, I'd been playing the Closed Variation, which is quite appealing to me even now, but which I stopped playing for practical reasons mentioned above. Also, one of the reasons that I stopped playing it was the fact that I wasn't doing very well with it anyway. There were numerous times that I tried to generate a kingside attack, only to fall elsewhere on the board too soon. So I thought for a split second there, "Maybe this particular variation of the Closed Sicilian doesn't suit me best?" Since then I've noticed several quirks about those setups and the opening in general:
White's Ng1 can be developed either to e2 or f3 (the latter only after f4 is played);
White's Nc3 will try to make it to the kingside via e2-possibly g3 after g4 is played (in case of a Nf3 after f4 setup), or via d1-f2 (in case of a Nge2 setup), when Ne2 often goes to g3;
if Black fianchettoes his King's Bishop as well (which he is likely to do), White can try to get rid of it as a kingside defender by playing Be3, Qd2 and Bh6 to exchange it; of course, White needs to have the f4-square vacant in order to try this, so it's often played in the Nge2 variation;
Be3 is a good move anyways because it guards the hole on d4, although after Nc3 travels to the kingside c3 can be played for that purpose, at the cost of weakening of the d3-pawn;
to sum it up about White's kingside attack in general (regarding the pawn structure among other elements), it can often take the shape of an Orthodox KID or a Yugoslav Attack (even though White castles kingside in almost every case), and it's a combined strategy most often.
But I believe there's still plenty to say and know about the Closed Sicilian, and I really feel a need to improve my general positional understanding to be able to play some other closed, even technical lines, better. Thus I plan to return to the Closed Sicilian for at least a few games, so which variations/setups should I try out? As always, thanks in advance!