Favorite day:
Most intense internet ego trip ever. I felt so invincible that I started ganking 3 60's at once in Blackrock, taking on a few High Warlords every now and then too.
The day I earned Rank 10 (Lieutenant-Commander) on Azzie, after 2 months of about 100k honor a week. Access to a crappy yet extremely rare blue pvp set, so intense that everytime im afk in IF or SW people run up to me to inspect my gear. Can still be seen on my forum avatar ^^
And, to the point where newbies to the game would just walk up to me and /salute.
After about a month Blizzard decided to update the pvp sets while keeping the old rank 10 sets the same. The new ones were soooooo much better, and mine stank (even tho it had the same graphic.) Didn't feel so invincible then...especially when BWL was starting to become more popular.