Artists usually do not put out enduring hits in the later stages of their careers, as much of the songs from a performer's third decade (and later) either come out tired and flat, or pay a weak homage to days gone by. Although it's been more than seven years since its release, to know that Morrissey can put out fresh, dynamic, clever, and relevant music in this millennium is a testament to his brilliance. Therefore, he should play "First of" as much as he'd like, as well as some of his other wonderful more recent songs like "I Have Forgiven Jesus", "Never-played Symphonies", "Mama lay Softly...", and "Munich Air Disaster..." just to name a few.
However, if we are calling out preferences, I like the material that appears on My Early Burglary Years, such as "Nobody Loves Us", "Girl Least Likely", "Swallow on My Neck", and "Sister I'm a Poet", all of which are tunes that I have rarely heard live.
I like the Smiths songs in the setlist because it shows, among other things, that Morrissey still holds those songs dear, and that he still likes singing them; which he should, because they are great songs. However, I am among those who feels that Morrissey as a solo artist is equal to, if not better than, the Smiths, and he can hold his own in a concert, giving the fans exactly what they want, without pulling from the Smiths catalog.
On a final note, I like a lively concert. I really do enjoy some of the down tempo numbers that showcase Morrissey's excellent voice, the aforementioned "I have Forgiven Jesus" for example. But, I can do away with the epic plodders such as "Seasick", "Michael's Bones" and "Pigsty". I know a lot of people think that "true" Morrissey fans love those songs and others like them. But I simply do not like them, neither live nor on CD/MP3.