You're right, 50/50. This year's Yarygin was pretty stacked from Russia. Sadulaev, Tsabolov, Zidakov, Bekbulatov, Rashidov, Chakaev, Kuular etc. The problem is the other Russian wrestlers have had limited international experience. Guys like Baev, Naifonov, Kuular and other guys in the divisions have won good medals at a junior/U21 level, but not senior. There is a huge difference between junior/cadet and senior. Maybe in a few years they will be much better.
I really wish this Indian league would be earlier, so wrestlers like Maroulis, Khinchegashvili, Petriashvili, Ramonov, Aliev etc would compete at it. Because The finale of the Indian league basically is on the day or two before Ivan Yarygin. If some of the bigger names from Indian league were at Yarygin, I would have no problem agreeing that is the toughest and most stacked.
Asian championships are pretty stacked with Uzbekistan, Kyrgyzstan, Kazakhstan, Iran, Japan, South Korea etc
European with Turkey, Armenia, Azerbaijan, Russia, Ukraine, Belarus, somewhat Poland, Georgia
Pan American is pretty much dominated by America
European is one of my favorite championships to watch.