Since I have been back (about 5 days of actually playing now) the following have stood out in arenas both ranked and solo:
Jugg / Guard
Rommer, Yummy, Xeoul
Sent / Mara
Xeoul, Zaer, Gerikke, Larsson, Anjinna, Masta
PT / VG
Corni(however you spell his name)... haven't played with anyone else yet since I have been back.
Op / Scon
Seale, Faiaar (sp?) , Myzran
Sage / Sorc
I hate what BW has done here and all i have seen since i have got back is sage / sorc being primary and dying, lots. Saying that Zavvi is still a beast.
Merc / Comm
Nihils (sp?)
Sniper / Slinger
Havent played anyone enough times to make a judgement
Shadow / Sin
Evo, Roudy
All round player who can play anything extremely well
Larsson and Bru.