Saddlebred = personality plus!
I had never owned a Saddlebred before I got my mare, though I had been around them when I was much younger. My girl is a Saddlebred/TB cross (we've finally figured out!) and, riding at a hunter barn, was definitely the odd one out with her high head carriage, snorting and blowing, and general drama queen act. We knew she was 1/2 TB and couldn't figure out the other half (like I said, hunter barn!). I was so frustrated with her "tude" and just couldn't understand why she wouldn't settle!! We had fresh off the track TBs who were quieter than her! I started doing some research and when I read something about Saddlebreds, it was like a light bulb going off! Saddlebreds' personalities are amplified - if they are quiet, they're super quiet; if they're friendly, they think they are lapdogs; if they are wild, well, have fun. They also really NEED to bond with their person to feel safe and happy. I did a TON of natural horsemanship work with my mare and she is a different horse. She went from literally mowing people down even with a chain shank to free lunging a perfect 20 m circle in a full-sized arena. She's still prone to "inflating" under saddle - head comes up and she feels like she's levitating - but she is so much quieter and more loving. They are definitely people horses. Once they trust you, they will do ANYthing for you - the aloof ones just need more time and love to get to that point. My mare still refuses to come greet me at the gate (did I mention they are also really stubborn??) but has, on two occasions, placed herself between me and an attacking horse in the pasture and allowed herself to get kicked and bitten rather than taking off. Sounds like you were lucky enough to find a Saddlebred who was born with the puppy personality, but even the difficult ones are well worth the work - they are loyal to the core once you have been deemed worthy. :)