My favorite accomplishment was being the only mage on my realm to be a season 1 gladiator. It was especially awesome as back then the only flying mounts people had were the regular flying griffin mounts, so having a armored netherdrake really stood out and made you feel special. Now a days, new rare mounts are nice and all, but with so many mounts out there they really don't stand out like that one moment in time.
The Black War Raptor. It was my first real purchase with honor and I love it still.
My "the Insane title" would be my biggest accomplishment I think.
I'm a collector of mounts and rare drakes...
My favorite Mount is the Fiery Warhorse, favorite achievement is 2.2k in Rbgs because i love bgs :)
Pets, love all the new pets, and boy of boy do I want that mini-tyreal
I was actually quite excited to win the Blazing Drake on my first DS run. I had to roll against all the other raiders. It's not a big thing, but it was great to me! I also got excited about getting one of the Windseeker bindings, but it was short-lived as I was on my druid who can't equip swords. :C
The thing I am most excited about achieving/acquiring in-game is a high arena rating.
I was really excited to get Thunderfury, Blessed Blade of the Windseeker. It took me weeks and weeks of beating up Garr to get it, but it was a happy moment when I finally did. I got a neat sword and a Feat of Strength, and my tiny little guild (The Cult of El Pollo Grande, part of the reason I want that chicken mount *wink wink*) got the We Are Legendary achieve. It was a good day! :D
finally downing the last few bosses in the current raid set before the new one starts up.
Downing Kil'Jaeden pre-wrath with my "not supposed to be good enough" guild. Was so proud, and still am. I miss those guys :(
being one of the first rogues on realm to get full cataclysmic set. gemed and enchanted. bgs were insane 3v1ing. but then blizz ruined sub spec in mop.
I would say warlock dungeon 0.5 set, it required a lot of patience and help from guildies.
Obtaining the Ashes of Al'ar.
Obtaining the Jade Kite for collecting 10 mounts! 41 more to go!
My most exciting achievement/accomplishment that I've earned in WoW was being THE FIRST PERSON IN THE WORLD TO BREAK THE 200 PET BARRIER This was before Mist of Pandaria was released, so it was extremely difficult to achieve. At the time, there were only 209 pets that could be collected. It took countless hours of farming, waiting, and researching (on WoWhead) to complete. But it was well worth it and very rewarding.
Collecting as many mounts as possible and obtaining the Jade Kite! 41 more moints to go.
Getting my very first title - Argent Champion. I was absolutely thrilled!
My favorite achievement was probably hitting 85 back in cata so that i was able to actually play with my friends and not get instantly killed by 85s when i tagged along for raids on horde cities.
There has been so many memories throughout the years of playing with friends, I remember staying up to 6 in the morning just to hit lvl 70 and just being able to fly! Giving up my hunter just to get my best friend to play with me. Geting my Spectral Tiger mount and Ashes of Al'ar. Killing a member of the opposite faction that was at least 10 lvls higher than me. Also through the game I had met my super awesome boyfriend, in which I plan to share many more achievs/accomplishments with. :D