What is the best virtual world ever

Try Marapets: flash games, fully customizable characters, quests, missions, item/pet trading, battles, fashion contests, giveaways, prizes, tons of free stuff, friends, forums, chat, blogs, clubs, pets, costumes, and more. It's pretty easy to make marapoints, there are many guides for beginners, and all the staff and members are very friendly and helpful. All completely free. Though there are account upgrades if you want them.
Some random things I love about marapets:
- you can get account upgrade credits from certain missions, (you can win up to 150 from the checklist) and buy upgrades without having to spend any real money!
- there is a ton of fun stuff for the human characters: hundreds of clothes, shoes makeup, and stuff like rare wigs and costumes. You can get plastic surgery, and even make your face random colors like blue or orange.
- Pets are tradeable, and you can even change their names. You can stat them up in every imaginable way: battle stats, school stats, university stats, elite gym stats, books, cds, musical instruments etc. All this can be used for missions, or jobs. Not to mention 150+ pet colors.-
- there are people of all ages from all over the world, so you're sure to find friends with similar interests.