What is the difference between preferred seating and regular seating? I bought preferred seating which is a little higher, but I didn't see any difference between that and regular?

Front and center more or less.

Our preferred seat were front row, center of show. Kind of like being on the 50 yard line. But... we only went with preferred seating because everything else was sold out after Christmas. Seats were great but after seeing the theater I really dont think they offer a bad seat.

Preferred seating was already booked when we purchased our tickets. We ended up on the very front but also at the end. Not bad seats but I believe the preferred seating gets you more centered with the theater.

We were on the end, front row. We could see everything, obviously, the far end was not as easy, but could see and enjoy the whole show.

Specifically selected or chosen for you seating

I really don't think there is a bad seat. You might not see as much on the ends. It is an awesome show.