azamara vs silver sea
 

looking at cruises for 2014. we like small ship cruising so nothing over 600 people Both Azamara and Silver sea fit our schedule. However I noticed that azamara doesn't have much time in Dubrovnik ( 7:30am - 2:30pm) but does have 13 hours in Kotor. Anyone been to Kotor and should I be excited about spending 13 hours there and only a few hours in Dubrovnik. Silversea spends the entire day in Dubrovnik and also goes to Kotor. both approx same price. It looks like Silver Sea is ab it more formal - what about Azamara?
any experience on either ship?