If you are really looking for a good WoW F2P alternative, try out Warhammer Online: Age of Reckoning.
The game has 40 ranks (levels) out of which 10 are free in the trial. You get access to the first two zones. The game's all about open RvR (Realm vs. Realm, that's a new concept. Instead of PvP, you have to work as a group to win.) so those two areas have a 'lake', that's the name players gave to the PvP area.
I've played there for a while and it's good, and I'm sure it's much better than Rift. You even have an armor set at rank 10, and 5 as well, if you manage to make a group going for the only dungeon available. (the game is in no way designed to PvE. PvE content in Tier 1 is adequate and populated but not for higher Tiers.)
Note: Tier symbolizes the way players fight each other based on levels. Tier 1 consists of Ranks 1-15.
2nd Note: You don't have to worry fighting rank 15's. The lake bolsters you to rank 15 automatically, with increased stats and such.
Therefore, content: -1 dungeon
-1 massive oRvR zone
-3 BGs
-1 extra BG every weekend
-Public Quests (area-wide group quests that you automatically join)
-Over 150+ quests
-Tome of Knowledge ---> about 400 achievements available in trial with some work.
Tome also includes Bestiary, with achievements for killing X mobs of a type.
-Tons of people since it's free.
-You can enter guilds.
Edit: You also get access to 3 battlegrounds, with one special battleground every weekend or so. I can post a guide to that game if you want.
Double edit: It's also on Mac. Karak Norn is the server you should go if you consider my idea.