I am a 37 year old clubber who has been going to Ibiza on an annual basis since 2002 - with the exception of the odd year at Uni and getting married where funds were tight. Have stayed at many a hotel in PDB and San An over the years. Definitely prefer San An again over PDB, went to San An this year (Sol Bahia) and PDB last year (old Bossa Park). Usually go to Ibiza over the Captured Festival weekend in September as a big group, but try other nights during the stay. For example tried Glitterbox, and loved Pikes.
I enjoy a range of dance music, but for me its all about the melodies. Trance, Progressive House, Melodic Techno are my preferred styles.
Have been observing the forum over the last year or two, will generally keep a look out. Will reply if I have anything useful to say!