i think any hotel you look at will have mixed reviews. as a guide i normally would look at the ages of people posting and take that into account. for example -the casino royal tends to get great reviews from the 18-35's that are there to party, but not from older people.
i would always choose the royal star for AI as i think it is the best HTOP hotel in lloret.
the ancla hotel isjust along the road from the r. star, but from what i've heard from staff and tourists alike it does not really advertise in the british marketplace and so is more geared up to other nationalities.
the fenals gardens -just over the road from the ancla is a very good hotel but is not AI.
the sunrise hotel is at the wrong end of the resort for me-i prefer the fenals end-so i cant offer any advice on this one.
have you looked for prices on go2spain or findmeaccom as booking with them and ryanair could give you some better options.

Friends have just come back from Royal Star and said it was fine - no problems at all. Try getting a price from Travel Republic with the code GETSOMESUN.