The R9 has the power for the .22 and is only rated 50 FPS slower than in .20.
I give local availability of pellet choices zero consideration.
If a tin doesn't say JSB on it I seldom have interest though I still like Kodiak pellets for my Patriot.
As you mentioned the internet shipping is a 3 day thing anymore, variety at your finger tips, and prices as good as it gets. In most cases the 20 cal is cheaper as there is less lead in the pellet and it isn't a novelty caliber for the players.
If you aren't keeping a couple tins ahead of your shooting, you should,IMO.
They are all good.
