The Rockets have had the weakest strength of schedule (SOS) so far & the Grizz have had the 4th weakest SOS; they are tied for the #1 seed. Meanwhile the Spurs/Kings have had the strongest SOS & are the #9/8 seed respectively.
The Spurs beat the Dubs in Oakland w/o Splitter/Belly/Patty on the 2nd night of a back-to-back.......so beating bad teams to get the top seed isn't going to get you anywhere, esp. when OKC might end up being the #8 seed.
You should be looking at their records in relative to their SOS to determine quality wins.