I play Brawl- with my friends pretty constantly (every Friday), Ike is pretty ridiculous.
FAir has no landing lag, so at 0% FAir -> anything is a true combo. You can also QD as many times as you want in the air and interrupt it at any point in the attack (even if the hitbox is triggered), so you can go out and spike/FAir people, come back, and Aether. Dash attack can also be interrupted once the hitbox comes out, so you can do jab -> BThrow -> dash attack -> jab -> regrab. At the edge, you can probably even do BThrow -> dash attack -> DTilt. Jab -> anything is pretty reasonable, and they even buffed DSmash so it hits outward like in BBrawl.
Also, there are wind hitboxes on FSmash, USmash, and the landing lag for FAir. My friend (Foodies) actually killed me twice by pushing me during Aether with her FAir, it's such an effective edgeguard in Ike dittos.
The only thing I don't like about Ike- is that his DThrow is like vBrawl Snake's, but it seems like you can't really follow up with anything. Other than that, Ike- seems on par with the other characters in terms of brokenness.