D&D General Highest level PC you've achieved.

[Brendan Byrd]

In terms of Character Level: Low 30's

AD&D (2e) Half-elf C/F/M
(ETA: No XP for treasure; no henchmen, followers, dominions, etc.)
Character converted to 3e when that edition came out. [ASI's?!!! ]
7-ish year campaign.
By the end: C12/F9/W10(?)

 

[payn]

3E level 20 (not a fan)
PF1 routinely level 14
5E level 20 (not bad at all)