To be honest, BlackFlame, L2 and WoW both have their own merits..
L2:
- Cool graphics
- Good looking sets of armor/weapons and such
- Castle Sieges
WoW:
- Good graphics (IF you like the Warcraft genre)
- Lots of content, although quest wise its 40,000 variations of 3 or 4 themes (fedex, kill x mobs etc)
- Fun. Not that L2 wasnt fun, but you can say L2 was a "2 week / month" max game, it depends how you define fun.
Where WoW is quest and grind to 60, which you can do quite quick, L2 was more "Well, theres a quest, or theres 3000000 man hours of GRIIIIND!"
Overall i really would choose WoW over L2, not because its new or because i love the Warcraft genre but because for a game that isnt done yet (bad point, seeing as its out, but "promised content" such as Battlefields sound cool) i think it has more .. potential.. than L2. (i know L2 has been out longer

)
meh, i just got up.. bah!!!11111