The thing with teams like Arizona, it's that they DO have stars. They just haven't been exposed on a national stage yet. Justin Upton, barely 24 years old, is having a MVP caliber season with a .291 average, 39 doubles, 31 homers, 21 steals, and a 904 OPS. Though wins are overrated, Ian Kennedy has 21 of them along with 198 strikeouts, a 2.87 ERA, and a sub 1.100 WHIP. You'd be hard pressed to find many better pitchers in the second half the season, a period in which Kennedy has fanned roughly a batter an inning while allowing more than 3 ER just once. Kennedy will likely finish in the top 5 of the NL Cy voting.
We're due for a good WS. Realistically, there hasn't been a truly riveting WS since the upstart Marlins topped the mighty Yanks in 2003. Of the 7 WS since then, only one went even six games and three were sweeps. And despite the presence of some big market, rating-generating teams, we've had a prolonged period of rather dull WSs. THAT isn't good for MLB either. Boston winning in 04 was fun, but the WS that year (a sweep) was anti-climatic following the ALCS.