It is an interesting matchup to say the least. One of my main factors of my formula seems to find success with teams that have just played tough competition lately, as of their last 4-7 games. That's just human nature, I mean, if a team has been playing medicore competition all week then has to go up against a decent competitor, it comes as a surprise to them. Golden State has a bit of an advantage in this aspect according to my formula.
Phoenix on the road, and Golden State at home, are practically even matchups normally. While Phoenix might feel like they are a solid team again, after blowing out Sacramento, they can now breathe a sigh of relief........but that could be a problem, if anything! I know Maggette might not even play, but that's not enough of a factor to downgrade the play.....it took me some time to think about it though.
Just take a quick look at what Golden State has done at home lately and who they had to play. Then take a look at Phoenix on the road lately? If it was pk, I would stay away, but its a good play when Golden State is an underdog by 4.
I know some might think Barnes and Richardson might want to play better and more aggressive against their former team... sure that might help people who have them on their fantasy teams, but sometimes this can be a drawback (trying too much to be a hero etc.) depending on the player.... So that factor can usually balance out.
That is my take on it, and I could end up wrong. I'll say it's probably the weakest of the 3 unit plays, since I almost put it at 2 units.