Just tested it myself a couple of times, and it seems that Gabija has higher EXP rates than any other server.
Killing a Kepa with a level 1 character in Saule, Zemnya and Laima brings a 0.0% Level 1 character to 7.8% Exp at Level 2.
Killing a Kepa with a level 1 character in Gabija brings a 0.0% Level 1 Character to 18.7% Exp at level 2.
Killing another Kepa with 7.8% exp on level 2 in the other servers brings you to 20,1% (12.3% exp gained).
Killing another Kepa with 18.7% exp on level 2 in Gabija brings you to 35.1% (16.4% exp gained)
This is really strange. Anyone that would like to conduct the same experiment to further prove/disprove this, I would be glad.

