JUST looking at Big Events isn't it, though. Sunny, for example, has a higher rating at Big Events than oskar (and a 0.04 better rating at Majors). autimatic has the same rating at Big Events, and a much higher rating at both majors and LAN than oskar. The HLTV list takes a hell of a lot more shit into account, including the level of opposition, how many maps that rating is for (as generally being more consistent over a long period of time is better) and so on.
With that said, while Guardian majorly loses to oskar in online matches, he's only played a relatively insignificantly bigger number of matches at Big Events than oskar, and their ratings are EXTREMELY close. Krimz beats Guardian pretty handily in every single category (especially both Big Events and Majors), with the exception of Online, where he's played pretty badly for his level (where he's accumulated a rating of 1.02, compared to Guardian's 1.07).
With that said, I am like 99% sure that Guardian will be lower than Krimz, and I don't even think they're gonna be right next to each other. Thinking Krimz is gonna be the next one, when Guardian hasn't been on the list yet, is kinda silly.