Romanov has really impressed me lately, mostly because he has really simplified his game and has concentrated on his positioning and stopped looking to just light someone up. He is carrying the LD and playing the hardest minutes, but Reilly's addition has helped a lot. Dobson gets all the press, but Romanov has made big strides in his game as well.
I also like the chemistry between Romanov and Dobson, I think they could be a long term pairing as they complement each other very well. It's actually a bit reminiscent of the Kasparaitis and Malakhov pairing in styles and roles. Romo has no delusions of being an OFD so he defers to Dobber to handle the offensive stuff, he just handles his defensive assignments. I will say his "I've done this before" goal celebration is awesome.
I think Romo is a definite keeper and the yin to Dobson's yang.