I’m glad to say that I finished leveling all my characters, and I have 10 lvl 85 chars on Bloodscalp EU.
Some interesting statistics:
Total Time Played: 286 Days (It’s impressively low I think, given that this is a five years old account)
Total Honorable Kills: 83.713 (Too bad lowbies do not count :/ ^^)
Approximate XP Gained: 442 million (Probably more, since most of my characters were leveled in Vanilla/BC, before the XP nerf.