[CrashTheBoard]

Originally Posted by Lights

I'll throw my hat into the ring here.

D1 Beginner
D2 Novice
D3 Intermediate
D4 Adept
D5 Advanced
D6 Expert
D7 Master
D8 Legendary
D9 Godly

Clear progression between stages, titles roll off of the tongue, and it loosely sticks to the old structure.

I like this one quite a bit