Agree that Signature is nicer. Though the rooms are a bit older and showing some aging, it's overall better property. The standard rooms are all bigger and all have a balcony with the exception of the Deluxe. The overall property at MGM is nicer IMO. Pool is better, more dining selections, and activities. Be advised though, if you get stuck at Tower 3, it's about an average of 10 minutes to walk to lobby and/or casino. Though tower 1 and 2 are slightly closer, it's not that much better. If you decide to stay at Signature, ensure you don't get stuck and put in tower 3.