Capetime5, whenever I'm flying first on 757s, my favorite seat is always 3D (just like what art234 sugested). I love seating by the window and this seat provides good outside viewing. Also, I think this seat has the perfect distance for watching the in flights shows on the monitor. I hope you're taking the dinner flight for your DEN to LAX segment (757 at 5:25pm I think). I do this segment quite often and always get great service. I remember my first time flying first on United and how exciting it was (and it still is whenever I have the priviledge). Just warning you though, once you taste it, it's so hard to go back to coach. Have fun!