Don't know how important this is, but I caught part of an NBC promo about the finale that kinda gave away some stuff. I apologize if it's just a waste of time to read.
* * * * * * S P O I L E R
S P A C E * * * *
The promo played the song Everything You Want by Vertical Horizon and showed scenes between Monica and Richard, and M and Chandler in the finale. It said in big words, Monica will be engaged, but to who? (Richard or Chandler). I thought that they gave away a pretty big important piece of the plot and makes it pretty obvious who it will be.
Cici