I made a rudimentary spreadsheet of every Valorant player that play in t1 (minus china for obvious reasons), and here's what I found out. (yes I manually inputted all the information, I'm sorry if there was a mistake!) I used two metrics: top 5 players from that country and every player from that country. I also made this based on the flag on vlr because I cba to figure out each person's nationality.
The best Valorant Country (if we are taking their top 5 rated players) is the US, and the highest rated country if we count everyone from that country is Russia. The lowest rated on both accounts is Singapore.
The best region (if top 5 players) is AMER or EMEA (if we count every player). PAC is better than AMER overall, but it does last in terms of peaks.
The top 5 countries (top 5 players)
1) US (1.126)
2) Russia (1.118)
3) Brazil (1.114)
4) Turkey (1.086)
5) Korea (1.078)
Top 5 Countries (every player; min 3)
1) Russia (1.044)
2) Sweden (1.0425)
3) Philippines (1.039)
4) Turkey (1.013)
5) Thailand (1.012)
Now, something to note is that countries with more players will have a lower rating on average because there will obviously be bad players from that country. (countries with less player typically have an advantage in the second metric) However, the best Valorant nation is most likely Russia. They have a lot of players that all perform AT LEAST average (with the exception of Redgar) While the US ranks higher peak-wise, they also have a copious number of players, and there is a significant amount of players that are rated below a 1. The Philippines are a weird case where there was a lot of mid players, but invy single handily put them on the board.
Edit: Someone mentioned that I forgot JessieVash. This did cause the Philippines to drop, leaving Russia at 1. They are still surprisingly high up.
Spreadsheet: texthttps://docs.google.com/spreadsheets/d/1ykcJAtv3Kg8ZGkSHztohTxk--rUhyKNs7iKB4DVjxLU/edit?gid=2137493557#gid=2137493557