Hilt, I completely disagree. Firstly, brinstar is not that good of an oli level, since uneven terrain ****s up fsmash, there's little room to camp, and that one part on the bottom, with the things that you can attack to break the stage, can **** up the pikmin. Secondly, why do you think frigate is better than norfair? Or even that great at all? It's like other levels, but worse with the ledgeless side and all. Its other attributes, other stages have that, probably in a better form. Also, when it flips to 2 ledges, the slopes **** up fsmash and pikmin toss (although it's good for grab, I spose, but it doesn't balance out).
Norfair is a good stage if you play it right. Oli can play other ways that just pivot grabbing. Obviously vertical comboing is one of his pluses. If you can camp lower platforms efficiently, you can absolutely wreck most chars. Oli's umash and uair both have amazing priority, and are stupid fast, it isn't too difficult to keep guys above you. Now, you say pivot grabs are bad here, but you are also ignoring the fact that small platforms=Oli's smashes cover almost the whole thing. And, of course, extra edges help a ton. If you get stuck above your opponent, you can use the edges by tethering as a means of getting lower, rather than just jumping down. It's an amazing stage if you play it correctly, and definitely one of my better stages.