My top 4 in the west are as follows

1) Spurs
2) Warriors (assuming bogut and curry stay health, significant games lost due to injury drops them into a 3-way tie for 4th)
3) Houston
4) OKC (OKC REALLY sh!t the bed when they traded Harden a year early. They don't seem to be willing/able to fill out their roster with the right pieces, I think their championship window is now closed.)
Tied for 5th Memphis & LAC. (If GSW faces some injuries these 3 teams will be fighting it out for the 4th spot)