well he really doesn't live with anyone in specific because of all the different events.
in Sonic X he lived with Chris Thorndyke (Tails, Amy,and Cream) and in almost every other events except for Adventures of Sonic the Hedgehog, in which he really doesn't live anywhere but seems to be traveling with Miles "Tails" Prower. Regularly he lives in Knothole Village as a kid along with all the other Freedom Fighters, in which he has his own hut. (Freedom Fighters and other Mobain include or included Sally Acorn, Amy Rose, Mina Mongoose, Ash mongoose, NICOLE, Bunnie Rabbot, Tails, Rotor, Antion, even Fiona Fox at one time). Now Sonic Underground is a different story. Again he doesn't really live anywhere, but he does have bases and travels with his triplets, Manic(brother) and Sonia(sister). i hope this isn't too confusing and it answers all your questions.
yes
no. sonic the hedgehog,who is amazing by the way, does not live on angel island.
He lives on a fantasy version of our planet Earth that was created by Sonic Team to suit Sonic the Hedgehog.
The anagram of sonic the hedgehog "sonic the hedgehog."
NO! Sonic Will not retire! Because Sega will never hurt there fans. Sonic Is Awesome! He Should NEVER retire. LONG LIVE SONIC THE HEDGEHOG!
sonic the hedgehog
sonic the hedgehog
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Sonic the Hedgehog