Upsets coming?

I have never seen as many possible (and realistic) upsets ever being able to happen in one year. While my Eastern Conference predictions are very good ones, I can't help but feel that I guessed very wrongly about the Western Conference. Take a look at the playoff bracket below:

The Spurs, Jazz, and maybe even the Thunder seem to be on the verge of changing the Western playoff landscape. The Lakers, Nuggets, and Mavericks were all legit title contenders coming into the postseason, so what is going on?

I get that the Utah/Denver series is a series between two almost equal teams (same record: 53-29), so some people won't categorize that as an upset, but considering the Nuggets squad's high expectations this season, as well as all the Playoff experience from its leaders, this series should actually belong to Denver. Now the only way for my prediction to be correct is if they make a comeback and win it in 7 games.

Surprisingly enough, the Dallas Mavericks and San Antonio Spurs are only separated by 5 games in the standings, yet they are seeded 2nd and 7th, respectively. San Antonio has some of the most talented and experienced veterans in the league, and they tend to come alive come playoff time. They failed to flip the postseason switch last year in the First Round, which led to their early elimination, but this time around the Spurs are looking like they really want to make one last push for a championship.

Of the three series I named as possible upsets, this one is easily the biggest. I told you guys earlier to watch out for this series, and sure enough, these teams have given as a great First Round matchup. OKC, who many thought would be done in 4 or 5 games, have one 2 straight and tied the series at 2 a piece. I stand by my prediction of LA in 6 games, but there is a huge possibility of a Thunder upset.

EDIT (April 28th, 2010): Add Milwaukee to the mix, too. They just won a very impressive road game over the Hawks, who seemed to just run out of fuel by the end of the game. Young Buck Brandon Jennings had 25 points on the night, but only 8 of his 20 shots went in. This gives them a 3-2 lead. Anyone else surprised? This could be the definition of an upset in this year's Playoffs. Andrew Bogut went down late in the season, leading many to question how many games the Bucks will be able to win in the postseason without him. Mike Woodson should start packing his bags if his Hawks lose the series, 'cause I can't see him getting a new contract after two consecutive poor Playoff showing since Atlanta took Boston to 7 games back in '08.