Again, none of this is anything other than personal bullshit dressed up as an argument. Stop pretending you want to actually debate cricketers and their performances here, you just want a nice little pat on the back for being "right" with your "ratings".Shh they don't want this context, they just want to be impressed by Jadeja's home averages.
Kumble is acknowledged as a great bowler pretty much the world over, just not an ATG.
Is Jadeja a great bowler? Outside of stat nerds here, pretty much the answer of world cricket is no. You want to know why? Because he is seen as a home basher whose ability is severely restricted outside of select conditions. And unlike Ashwin who has a sheer volume of wickets to make his home bashing case, Jadeja hasn't even played nearly as much to be in that conversation.
You can't escape simple facts. You are comparing a bowler with over 600 wickets with one with less than 300. Even if you think they are equally effective, the first will simply be rated a level higher by the entire world by virtue of sheer wicket tally and proving himself over a longer period.
My advice? Just be patient and less Jadeja play another 2-3 to solidify his case. Don't jump the gun because Jadeja is the flavor of the month on CW.