I'll play.

Quebec representing.

Asia already have 6 borders... and, hulmey, you want to make an other one

Just give higher bonus to other continents will solve the problem

I think you should give higher bonus to other continents instead of giving lower bonus for Oceania and Antartica.
I think bonus sould looks like that :
Africa: 6
Europe : 3
N. America : 4
S. America : 4
Asia : 8
Oceania : 3
Antartica : 2
Madagascar : 1

And maybe make a link between Algeria and ...