Whose POV is it anyway?

I'm working on the sequel to Rarer Than Rubies, and one of my techniques is to keep track of scenes: whose POV, location, mood, etc., and I see that most of them are turning out to be from Trent's POV. Unfortunately, in this story, we get into a lot of Reed's backstory, including his relationship with an old partner (work partner and former lover), so I'm realizing I need more from Reed's POV to get at how that's affecting him.

I also want to explore how Reed's issues are affecting Trent, and it's fun to work on scenes where Trent reacts to Reed's behavior. It's good practice in showing not telling, since Trent gets to see how Reed acts without actually knowing what he's thinking. I'm working hard to show Reed's actions, seen through Trent's eyes, and possibly misinterpreted. I'm also playing a bit with Jane Austen's technique from Pride and Prejudice: giving the reader different perceptions of a character before the character ever shows up on the page. What everyone else thinks about him becomes more important than what he actually does when he shows up…. 

When it comes to POV in a romance, should it be equal, or do you (reader or writer) like to get more into one person's head? What about supporting characters? Do you enjoy reading scenes from a POV outside the two heroes? Why or why not?