Zdr - From what I have played them in 3v3 (never happened to meet in 2on2) he is playing constantly good and cycles cyclones well.
Braindeadly & Dangen - Met both guys over the season(s) and by far the best playing from hunters that I'v seen.
Shandia - Counterspelling dem Fel dom's 2k9, undoubtfully the best mage I have met this season (smekk was and is still awesome, but he is losing the grip from multiclassing and not focusing on his mage that much anymore - I might be wrong here, but thats how I feel it, as the same happened to me midway s6.)
Voidenator & Aldon - Played versus them both over the seasons and they both tend to be awesome on surviving and incredible offensive playing.
Vexer - Really underestimated player on my eyes and probably the best rogue vs rogue player I have played versus. (add Tonyzharik to the list as if he returns for the same reasons.)
Illû (resto) & Darksoldierr (enha) - Played with and versus Illu for countless times and its needless to say he knows what he is doing and does it really well. Darksoldierr on the other hand has been more focused on 5on5 but Im happy to see him doing really well on the 3on3 bracket again, always scary to meet him.
Nawb - This is what I tought before playing with him and now its all come even more clear to me why I was thinking that... Töre is awesome player aswell but I have hardly met him so I cannot comment much on that.
Gowan - Doing some sick damage (dont all warriors?) and playing awesome on both, defensive and offensive.
Jizzlie & Jenspro - Played plenty of times versus Jizzlie in both, 3on3 and 2on2 and despite their comp being slighty counter to ours in 2on2 he did incredibly well on shutting down the even slightest chances on getting a kill. Jenspro is playing on high level constantly and its always big fun to meet him in arena while you know the game is going to be intense as everytime versus him.
Holypalaswe (obviously holy) & Kayen (ret) - After all the shittalk going around on holypalaswe I happened to meet him plenty of times in arena and I dont know where you people get the idea of him being bad? He is the best holy paladin I have met in wotlk by far, in pretty much all possible ways (fakecasting,positioning to name a few). Kayen has been always top ret and only thing he has been lacking over the times is people to play high with, as you might know ret wasnt popular at all in tbc and lack of people to play with in wotlk (Hi Defias in start of wotlk).