Lol shadow if u starting it just hook me up when u on im also starting it -_-
Starting what? My twink?
Already done. Level 14 Ranger ... which I'm planning to cap at level 40 until I have a full set of +10 level 30 AP gear - at which point I'll think about leveling up again.
A word to the wise, think carefully about the class you want to use for twinking. Casters are all well and good, but since the Eltnen/Morheim rifts are permanently nerfed your only options are Beluslan/Heiron Twink hunts/Abyss, it means you'll have to get to level 45 before you pose any danger to a level 50+, since 99% of your spells get resisted, which means you can't do any damage. So that cuts out clerics/sorcs/sm - unless you plan to go for a level 50 twink, then it'll be fine ... just a lot of work to get there.
Temps are relatively useless because of the low DPS - again only really worth it at level 50.
Gladdy's make awesome twinks, even at level 40, I've seen some pretty potent ones wiping out level 50's (obviously not well-geared ones). Just be sure to keep a proper PvE set on hand for instances, since clerics hate (and I speak from personal experience) healing a level 30 AP gear glad in any level 40+ instance - they get badly pwned by the mobs.
That pretty much leaves sins and rangers. Sins do a crap-load of damage and can kill almost anything (and the 2.5 update will make them more deadly), but I find them challenging because of our near permanent 200ms+ latency. Especially in the air.
Rangers are easier because you can keep your distance and they have silence/sleep arrow options - just ... getting one up to level 20 is a pain because before that time they have seriously sucky DPS.