I am by no means a DAoC veteran. I played it for a few months way back when it first came out, and just recently got the game again and started out fresh (No level 50s).
Now, I did get me some play money (eBay Plat) to get me started, so it has been MUCH easier than starting with Nothing.
Anyway, I think the fastest leveling toon in Hib is a Ranger.
I've solo'd it to 40 in about 2 weeks. (Game time says 2 days 3 hrs). About 50 hours.
The reason I say Rangers are the fastest, is I pop yellows at a rate of about 6 per minute at my current level (40). I don't really mess with OJ's as "sometimes" my critical misses, and that just means I have to either RUN or duke it out (and sit down for 5 minutes).
Yellows and blues are pretty much just none-stop kills.
You have to remember though, I've bought all the best equipment within reason max out my stats and use Nothing but FFB arrows.
My Celt Ranger's stats with items and pathfinding buffs are:
Str: 162
Con: 146
Dex: 231
Quick: 208
Weapon: 1024
Damage: 1319
Hit Points: 1192
Armor: 514
I was bored one night and grouped with a Druid in TD. We were taking about 1 minute per kill (Not enough room in TD's to do long range sniping, so I had to melee a lot). She was thinking "WOW, we're getting Great XP!
So I politly said, "This XP is actually sucky. Follow me."
I took her to a spot where I kill everything before it gets to me. I was killing about 4 to 5 per minute.
Rangers Rule.
Now, when it comes to RvR... that may be a different story. :(