If I'm remembering correctly, you dock back in Miami around 7:00 am, with self debarkation beginning around 7:30. The reason I know this is because I was on the Majesty back in 2007. I don't think you'll be disappointed with the Majesty, but it will probably seem small compared to when you go the Oasis.
2007 - Majesty of the Seas (Bahamas)
2009 - Enchantment of the Seas (Western Caribbean)
2010 - Freedom of the Seas (Western Caribbean)
2013 - Golden Princess (Alaska, roundtrip from Seattle)