The Liberty City series just doesn't have the side missions that Vice City did so well.
The Ballad of Gay Tony has harder missions (I still haven't killed the small boats with the helicopter). The watching the club side mission is interesting. I really like the mission scoring screens that follow the completion of the missions. I look forward to bettering my score after I complete the game (if I can ever kill those f-en boats).
I'm a big Opie and Anthony fan. The number of inside jokes that pop up in the game is a hoot!
Lazlow should do longer radio segments. His radio bits are great and wish there were more of them.